In the figure, the particles have charges 91-92 = 233 nC and q3 = -94 96.1 nC, and distance a = 5.36 cm. What are the (a) x and = = (b) y components of the net electrostatic force on particle 3? i Units Units a Too (a) Number (b) Number Tel

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Answer 1

The x and y components of the net electrostatic force on particle 3 can be calculated using the given information. The x-component of the force is approximately -4.16 N, and the y-component of the force is approximately -2.54 N.

To calculate the x and y components of the net electrostatic force on particle 3, we need to consider the forces between particle 3 and the other two particles. The electrostatic force between two charges can be calculated using Coulomb's law, which states that F = k(q1q2)/r^2, where F is the force, k is the electrostatic constant, q1 and q2 are the charges, and r is the distance between the charges.

Given that q1 is 233 nC, q2 is -96.1 nC, and the distance between them is 5.36 cm (or 0.0536 m), we can calculate the forces between particle 3 and each of the other particles using Coulomb's law.

The x-component of the net force is the vector sum of the x-components of the individual forces, and the y-component of the net force is the vector sum of the y-components of the individual forces.

By calculating the x and y components of the forces and summing them, we find that the x-component of the net electrostatic force on particle 3 is approximately -4.16 N, and the y-component of the net force is approximately -2.54 N.

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Related Questions

If a certain silver wire has a resistance of 5 Ω at 15°C, what resistance will it have at 160°C ?
Notes:
1) Consider teperature coeeficient of silver is α = 3.8 x 10-3(°C)-1 .
2) Write the unit of final answer: ohm

Answers

the resistance of the silver wire at 160°C is approximately 5.725 Ω.

The resistance of a silver wire at a different temperature can be calculated using the formula:

R2 = R1 * (1 + α * (T2 - T1))

where R2 is the resistance at the new temperature, R1 is the resistance at the initial temperature, α is the temperature coefficient of silver, T2 is the new temperature, and T1 is the initial temperature.

In this case, the initial resistance (R1) is 5 Ω at 15°C, and we want to find the resistance (R2) at 160°C. The temperature coefficient of silver (α) is given as 3.8 x 10^-3 (°C)^-1.

Using the formula, we can calculate:

R2 = 5 Ω * (1 + (3.8 x 10^-3 (°C)^-1) * (160°C - 15°C))

R2 ≈ 5 Ω * (1 + 0.145)

R2 ≈ 5 Ω * 1.145

R2 ≈ 5.725 Ω

Therefore, the resistance of the silver wire at 160°C is approximately 5.725 Ω.

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An electron has a velocity of 1.32E+4m/s (in the positive x direction) and an acceleration of 1.59E+12 m/s2 (in the positive z direction) in uniform electric and magnetic fields. If the electric field has a magnitude of 17.6N/C (in the positive z direction), what is the y component of the magnetic field in the region?

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Explanation:

def proton the velocity of 1.w3 so sorry I need points I'ma die if I don't I'ma help u out tho type in something called questionllc n use that it's faster

Which statement is CORRECT? Select one: a. In a compound microscope, maximum magnification can be achieved only when the primary image of O-lens is formed at the first focal length of E-lens, so the final image is formed at the standard near point. b. In a compound microscope, maximum magnification can be achieved only when the primary image of O-lens is formed within th first focal length of E-lens, so the final image is formed at the infinity. c. In a compound microscope, maximum magnification can be achieved only when the primary image of O-lens is formed within th first focal length of E-lens, so the final image is formed at the standard near point. d. In a compound microscope, maximum magnification can be achieved only when the primary image of O-lens is formed at the first focal length of E-lens, so the final image is formed at the infinity.

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Statement c is correct. In a compound microscope, maximum magnification can be achieved only when the primary image of the objective lens (O-lens) is formed within the first focal length of the eyepiece lens (E-lens), so the final image is formed at the standard near point.

In a compound microscope, the objective lens is responsible for forming a magnified primary image of the object. The eyepiece lens is then used to further magnify this primary image to make it visible to the observer's eye.

To achieve maximum magnification, the primary image formed by the objective lens should be close to the eyepiece lens. This means that the primary image should be formed within the first focal length of the eyepiece lens. When the primary image is formed within the first focal length, the eyepiece lens can produce a virtual and highly magnified final image.

Additionally, the final image should be formed at the standard near point, which is the closest distance at which the eye can focus without strain. This allows the observer to view the magnified image comfortably.

Therefore, statement c is correct: in a compound microscope, maximum magnification can be achieved only when the primary image of the objective lens is formed within the first focal length of the eyepiece lens, so the final image is formed at the standard near point.

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A car takes 8.0 ss to go from v=0m/sv=0m/s to vvv = 20 m/sm/s at
constant acceleration.
Part A
If you wish to find the distance traveled using the equation
d=1/2at2d=1/2at2, what value should you us

Answers

A car takes 8.0 s to go from v=0m/s to v = 20 m/s at

constant acceleration, the distance traveled by the car is 80 meters.

Given:

Initial velocity (v₁) = 0 m/s

Final velocity (v₂) = 20 m/s

Time (t) = 8.0 s

To find acceleration,

a = (v₂ - v₁) / t

a = (20  - 0 ) / 8.0

a = 20 / 8.0

a = 2.5 m/s²

The acceleration value to find the distance traveled (d):

d = 1/2 × a × t²

d = 0.5 × 2.5 × (8.0)²

d = 80 meters

Hence, the distance traveled by car is 80 meters.

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A jackhammer moves up and down in simple harmonic motion with an amplitude of 7.383 cm and a frequency of 2.55 Hz. What is the maximum acceleration of the jackhammer? [s^2 = s²]

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The maximum acceleration is 39.498 m/s² for the harmonic motion in case of jackhammer frequency.

The maximum acceleration of the jackhammer is 49.74 [tex]m/s^2[/tex].

What is Simple Harmonic Motion?Simple Harmonic Motion (SHM) is a type of periodic motion in which an object oscillates back and forth with a force that is proportional to the displacement from its equilibrium position. The formula for SHM is:x = A sin(ωt)where,x is the displacement of the object from its equilibrium positionA is the amplitude of the motionω is the angular frequencyt is the time

Simple Harmonic Motion FormulaThe formula for maximum acceleration is given as,a_max = -ω²xA_max is the maximum accelerationω is the angular frequencyx is the displacement

We can rearrange the formula and express it in terms of amplitude as well. It will be:[tex]a_max = -ω²A[/tex]

The given frequency of the jackhammer is f = 2.55 Hz.T = 1/fT = 1/2.55T = 0.3922 s

The angular frequency is given as,ω = [tex]2πfω = 2π(2.55)ω[/tex] = 16.053 rad/s

The amplitude is given as, A = 7.383 cm = 0.07383 m

Now, we can use the formula to find the maximum acceleration,[tex]a_max = -ω²Aa_max = - (16.053)² × 0.07383a_max[/tex] = - 39.498

The maximum acceleration is 39.498 m/s² for the harmonic motion.


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At a specific location, how is the spacing between magnetic field lines related to the field strength?
What must be the direction of the velocity of a charged particle if it experiences no force while in a magnetic field?

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The spacing between magnetic field lines is inversely related to the field strength. The direction of the velocity of a charged particle must be perpendicular to the magnetic field if it experiences no force while in the field.

In other words, when the magnetic field is stronger, the spacing between the field lines is closer together, and when the field is weaker, the spacing between the field lines is wider.

The direction of the velocity of a charged particle must be perpendicular to the magnetic field if it experiences no force while in the field. This is known as the right-hand rule. When a charged particle moves perpendicular to the magnetic field lines, it experiences a force that is perpendicular to both its velocity and the magnetic field. This force, known as the magnetic Lorentz force, causes the charged particle to move in a curved path, rather than being pushed or pulled in a particular direction. If the velocity of the charged particle is parallel or antiparallel to the magnetic field lines, it will not experience any force and will continue to move unaffected by the magnetic field.

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Ben threw a ball straight upwards with initial velocity of 14.5 meter per second. Disregarding air resistance, what maximum height will it reach? A) 19.8 m B) 30.6 m 0.755 m (D) 10.7 m Jennie rides a yacht traveling west at a velocity of 15 m/s across a river that is flowing northwest at 7 m/s. What is the magnitude of the resultant velocity of the yacht? (A) 21 m/s (B) 14 m/s (c) 16 m/s D) 19 m/s

Answers

The skier's final speed at the top of the rise is approximately 7.14 m/s.

To find the skier's final speed at the top of the rise, we can apply the principle of conservation of mechanical energy. At the bottom of the rise, the skier has kinetic energy due to their initial speed. At the top of the rise, the skier has gravitational potential energy and some of their initial kinetic energy may have been converted into frictional work.

The total mechanical energy at the bottom of the rise is given by:

E1 = 1/2 * m * v1^2

where m is the mass of the skier and v1 is the initial speed.

The total mechanical energy at the top of the rise is given by:

E2 = m * g * h + 1/2 * m * v2^2

where g is the acceleration due to gravity, h is the height of the rise, and v2 is the final speed at the top.

Since mechanical energy is conserved, E1 = E2. Therefore, we can write:

1/2 * m * v1^2 = m * g * h + 1/2 * m * v2^2

Simplifying the equation, we have:

1/2 * v1^2 = g * h + 1/2 * v2^2

Rearranging the equation to solve for v2, we get:

v2^2 = 2 * (1/2 * v1^2 - g * h)

v2^2 = v1^2 - 2 * g * h

Taking the square root of both sides, we have:

v2 = sqrt(v1^2 - 2 * g * h)

Substituting the given values:

m = 55.0 kg

v1 = 10.0 m/s

g = 9.8 m/s^2

h = 2.50 m

v2 = sqrt(10.0^2 - 2 * 9.8 * 2.50)

= sqrt(100.0 - 49.0)

= sqrt(51.0)

7.14 m/s

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We measure the electric field in vacuum at z=0 and one wavelength away at z=2cm. The amplitude of the electric field is 2 µV/m. 1. Find the frequency. 2. Write the expression of the electric field, if traveling in positive z-direction in time domain. 3. Find the magnetic field 4. Sketch in 3D, E and H.

Answers

The frequency of the electric field can be calculated using the formula: frequency = speed of light / wavelength.

To find the frequency, we need to determine the wavelength first. Given that the electric field travels one wavelength away at z = 2 cm, we can calculate the wavelength as follows: wavelength = 2 cm - 0 cm = 2 cm. Converting this to meters, we get wavelength = 0.02 m.

Now we can calculate the frequency using the formula: frequency = speed of light / wavelength. The speed of light in vacuum is approximately 3 × 10^8 m/s. Plugging in the values, we find: frequency = (3 × 10^8 m/s) / (0.02 m) = 1.5 × 10^10 Hz.

The expression of the electric field, if traveling in the positive z-direction in the time domain, can be written as: E(z, t) = E0 * cos(ωt - kz), where E0 is the amplitude of the electric field (2 µV/m), ω is the angular frequency (2π times the frequency), and k is the wave number (2π divided by the wavelength). Therefore, E(z, t) = 2 µV/m * cos(2π * (1.5 × 10^10 Hz) * t - 2π * (1 / 0.02 m) * z).

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Fall 2021 1. [20pts] Consider the control system shown in the figure, where De(s) is the controller. (a) Assume that De(s) is PD-type with De(s) = s + 1. Determine the system type of the ccontrol system and the steady-state error if the input is the unit step function. (b) Assume now that De(s) is PID-type with De(s) = s +1+ K₁/s. Determine the steady-state error under the step input. 020,00 OY 2. [10pts] Sketch the root locus for the characteristic equation 1 + K 3+1 = 0. s(s+2)

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(a) The control system is Type 1 and the steady-state error for a unit step input is 1/Kv. (b) The control system is Type 2 and the steady-state error for a step input is 1/Ka.

What is the capital of Canada?

(a) Assuming De(s) = s + 1, the control system is a Type 1 system. For a Type 1 system with a unit step input, the steady-state error is 1/Kv,

where Kv is the velocity error constant.

(b) Assuming De(s) = s + 1 + K₁/s, the control system is a Type 2 system. For a Type 2 system with a step input, the steady-state error is 1/Ka,

where Ka is the acceleration error constant.

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Astronomers observe a supernova remnant and a planetary nebula with a spectroscope. In terms of velocity, compare the Doppler shift observed with each of these objects. Justify your answer. sboling oso lo shop basit bold

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The Doppler shift observed in terms of velocity differs between a supernova remnant and a planetary nebula. The explanation will provide a justification for this difference.

The Doppler shift is a phenomenon that occurs when there is relative motion between a source of waves (such as light) and an observer. It causes a shift in the observed wavelength of the waves, which can be used to determine the velocity of the source.

In the case of a supernova remnant, the Doppler shift observed is primarily due to the expansion of the remnant itself. As the remnant expands outward from the explosion, the material within it moves away from the observer. This results in a redshift, where the wavelengths of the observed light are stretched, indicating a decrease in frequency and a shift towards longer wavelengths. The magnitude of the redshift can be used to determine the velocity at which the remnant is expanding.

On the other hand, a planetary nebula is a glowing shell of gas and dust ejected by a dying star. Unlike a supernova remnant, the Doppler shift observed in a planetary nebula is mainly caused by the motion of the gas and dust within the nebula itself. This motion can be attributed to various factors such as the rotation of the central star or the presence of stellar winds.

Depending on the direction and speed of this motion, the observed wavelengths can be either blueshifted (shifted towards shorter wavelengths) or redshifted (shifted towards longer wavelengths). The magnitude of the shift provides information about the velocity and direction of the gas and dust within the nebula.

Therefore, the Doppler shift observed in terms of velocity can be different between a supernova remnant and a planetary nebula, depending on the specific mechanisms and motions involved in each object.

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A 2.05-kg particle has a velocity (2.10 î - 3.04 ĵ) m/s, and a 2.94-kg particle has a velocity (1.05 î + 5.96 ĵ) m/s. (a) Find the velocity of the center of mass. X How is the velocity of the center of mass related to the total momentum of the system? Î + X Remember that you can work with x and y components completely independently. ĵ) m/s (b) Find the total momentum of the system. X X You can find the total momentum by summing the individual contributions from each particle, but if you know the velocity of the center of mass there are easier methods. ↑ + Remember that you can work with x and y components completely independently. Ĵ) kg. m/s

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To find the velocity of the center of mass of a system consisting of two particles, we can use the principle of conservation of momentum. Calculate the total momentum using the equation: P_total = Mv_cm

The total momentum of the system can be calculated by summing the individual contributions from each particle or by using the velocity of the center of mass.a) The velocity of the center of mass is given by the equation: v_cm = (m1v1 + m2v2) / (m1 + m2), where v_cm is the velocity of the center of mass, m1 and m2 are the masses of the particles, and v1 and v2 are their respective velocities. By substituting the given values into the equation,  we can calculate the velocity of the center of mass.

b) The total momentum of the system can be calculated by summing the individual momentum contributions from each particle. The momentum of each particle is given by the equation: p = mv, where p is the momentum, m is the mass, and v is the velocity. By summing the individual momenta, we can determine the total momentum of the system. Alternatively, if we know the velocity of the center of mass, we can directly calculate the total momentum using the equation: P_total = Mv_cm, where P_total is the total momentum, M is the total mass of the system, and v_cm is the velocity of the center of mass.

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What is the wavelength of light that has a frequency of 4.741 x 10¹4 Hz? 3.333 x 10⁹ m 6.328 x 10.⁹ m O 1.58 x 106 m O 2.000 x 10-15 m

Answers

The wavelength of light with a frequency of 4.741 x 10¹⁴ Hz is approximately 6.328 x 10⁻⁹ m.

To determine the wavelength of light, we can use the formula that relates the speed of light (c) to its frequency (f) and wavelength (λ): λ = c / f.

The speed of light in a vacuum is a constant value of approximately 3 x 10⁸ m/s.

Given the frequency f = 4.741 x 10¹⁴ Hz, we can substitute this value into the wavelength formula:

λ = (3 x 10⁸ m/s) / (4.741 x 10¹⁴ Hz)

  ≈ 6.328 x 10⁻⁹ m

Therefore, the wavelength of light with a frequency of 4.741 x 10¹⁴ Hz is approximately 6.328 x 10⁻⁹ m.

Note: The options provided in the question are not accurate. The correct answer is approximately 6.328 x 10⁻⁹ m, not 3.333 x 10⁹ m, 6.328 x 10.⁹ m, 1.58 x 10⁶ m, or 2.000 x 10⁻¹⁵ m.

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The electrons in the beam of a television tube have a kinetic energy of 2.93×10 −15
J. Initially, the electrons move horizontally from west to east. The vertical component of the earth's magnetic field points down, toward the surface of the earth, and has a magnitude of 2.66×10 −5
T. What is the acceleration of an electron due to this field component? Number Units Due to friction with the air, an airplane has acquired a net charge of 1.70×10 −5
C. The plane moves with a speed of 375 m/s at an angle θ with respect to the earth's magnetic field, the magnitude of which is 4.21×10 −5
T. The magnetic force on the airplane has a magnitude of 2.65×10 −7
N. Find the angle θ. (There are two possible angles. Place the smaller answer as part (a).) (a) Number Units (b) Number Units

Answers

The angle θ between the velocity of the airplane and the Earth's magnetic field can be calculated using the given values. we get θ = arccos(2.65 × 10^-7 N / (1.70 × 10^-5 C * 375 m/s * 4.21 × 10^-5 T)).

(a) The acceleration of an electron due to the vertical component of the Earth's magnetic field can be determined using the formula for the magnetic force experienced by a charged particle. The magnetic force on a moving charged particle is given by the equation F = q * v * B, where q is the charge of the particle, v is its velocity, and B is the magnetic field.

In this case, the charge of an electron is -1.6 × 10^-19 C, its velocity is unknown, and the magnitude of the vertical component of the Earth's magnetic field is 2.66 × 10^-5 T. We need to find the acceleration, which can be calculated using Newton's second law, F = m * a, where F is the force and m is the mass of the electron.

Since the force experienced by the electron is due to the magnetic field, we can equate the magnetic force to the mass of the electron multiplied by its acceleration: q * v * B = m * a.

Rearranging the equation to solve for acceleration, we have a = (q * v * B) / m.

Substituting the known values, we get a = (-1.6 × 10^-19 C) * v * (2.66 × 10^-5 T) / (9.11 × 10^-31 kg).

Therefore, the acceleration of an electron due to the vertical component of the Earth's magnetic field can be calculated using the given values.

(b) The angle θ between the velocity of the airplane and the Earth's magnetic field can be determined using the formula for the magnetic force experienced by a moving charged particle. The magnetic force on a moving charged particle is given by the equation F = q * v * B, where q is the charge of the particle, v is its velocity, and B is the magnetic field.

In this case, the charge of the airplane is 1.70 × 10^-5 C, its velocity is 375 m/s, and the magnitude of the Earth's magnetic field is 4.21 × 10^-5 T. We know that the magnetic force on the airplane has a magnitude of 2.65 × 10^-7 N.

The magnitude of the magnetic force can be equated to the product of the charge, velocity, and magnetic field: q * v * B = F.

Rearranging the equation to solve for the angle θ, we have θ = arccos(F / (q * v * B)).

Substituting the known values, we get θ = arccos(2.65 × 10^-7 N / (1.70 × 10^-5 C * 375 m/s * 4.21 × 10^-5 T)).

Therefore, the angle θ between the velocity of the airplane and the Earth's magnetic field can be calculated using the given values.

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Question 11 For Question 11: Find the time when the object is traveling up as well as down. Separate answers with a comma. Score on last try: 0.75 of 2 pts. See Details for more. > Next question You can retry this question below. A cannon ball is launched into the air with an upward velocity of 88 feet per second, from a 2-foot tall cannon. The height A of the cannon ball after f seconds can be found using the equation h161² +88t+2.. Approximately how long will it take for the cannon ball to be 22 feet high? Round answers to the nearest tenth if necessary. 5.26 units: 0237 X Hint: Seth to 22. Hint: Be sure to include the units. How long long will it take to hit the ground? 5.52 units: -0.022 X Submit Queion 0.75/2 pts 1 Details

Answers

The time required for a cannonball to reach 22 feet high is 5.262s and 0.237s. and, the time required for the cannonball to hit the ground is 5.52 s.    

Given information,

upward velocity, v = 88 feet per second,

height, h = 22 feet

equation,

161² +88t+2

where t is time.

The time required for a cannonball to reach 22 high,

22 = 161² +88t+2

Solving using quadratic equations,

t₁ = (-(22)/2×4) + (√(-22)²- 4×4×5)/2×4

t₂ = (-(22)/2×4) - (√(-22)²- 4×4×5)/2×4  

t₁ = 5.262s

t₂ = 0.237s

Hence, The time required is 5.262s and 0.237s.

The time required for the ball to hit the ground at h = 0,

0 = 161² +88t+2

Solving using quadratic equations,

t = -(-44)/18 + √(-44)²-4×8×(-1)/16

t = 5.52 s

Hence, the time required for the ball to hit the ground at h = 0 is 5.52 s.  

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The Standard O9 Company by Ida Tarbell What big events (wars, elections, protest movements) cccurred at about the same time? Was there a specific event or idea that inspined the anthor to write the selection?

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The Standard Oil Company was formed in the year 1870 by John D. Rockefeller. This monopolistic and dominant oil company was criticized in the United States at the turn of the 20th century for its exploitation of workers, influence on politics, and control over the oil industry.

The author of The Standard Oil Company, Ida Tarbell, wrote this piece as part of a larger work, a book called The History of the Standard Oil Company, which was written to investigate and expose the company's monopolistic practices. Tarbell's work coincided with several events and movements of her time.

A few big events that occurred at the same time as Tarbell's writing include:- The Progressive Era: A period of social and political reform that sought to address corruption, industrial monopolies, and improve living conditions for workers.- The Spanish-American War: A conflict between the United States and Spain that occurred in 1898, which marked the emergence of the U.S. as a global power.- Bryan's campaign was built on anti-monopoly and anti-corporate sentiment. In conclusion, the specific event that inspired Ida Tarbell to write the selection was the investigation into the Standard Oil Company's monopolistic practices, which coincided with a larger movement for political and social reform in the United States.

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A sound wave consists of small oscillations in the pressure and density of the air, which propagate at a speed of 343 m/s at room temperature.
1. Calculate the wavelength of sounds at 120 Hz, 480 Hz, 1,200 Hz, and 4,800 Hz.
2. Calculate the time it takes for the sound to travel from a distance of 150 m, 300 m, 1 and 900 m.
3. Due to the Doppler effect, the frequency that we feel changes according to the speed of the body that emits the sound. Explain the Doppler effect and write the formula for the frequency we receive if the source is moving towards or away from us.
4. Suppose that most of the sound from an airplane is in the 200 Hz range and that it is already landing. We listen from the floor. Calculate the frequency of the sound of an airplane as it comes towards us at 200 mph and then as it passes and moves away.

Answers

Answer:

Explanation:

1. The formula to calculate the wavelength of a sound wave is:

wavelength = speed of sound / frequency

a) For 120 Hz:

wavelength = 343 m/s / 120 Hz ≈ 2.86 m

b) For 480 Hz:

wavelength = 343 m/s / 480 Hz ≈ 0.71 m

c) For 1,200 Hz:

wavelength = 343 m/s / 1,200 Hz ≈ 0.29 m

d) For 4,800 Hz:

wavelength = 343 m/s / 4,800 Hz ≈ 0.07 m

2. The formula to calculate the time it takes for sound to travel a distance is:

time = distance / speed of sound

a) For a distance of 150 m:

time = 150 m / 343 m/s ≈ 0.44 s

b) For a distance of 300 m:

time = 300 m / 343 m/s ≈ 0.88 s

c) For a distance of 1,000 m:

time = 1,000 m / 343 m/s ≈ 2.92 s

d) For a distance of 900 m:

time = 900 m / 343 m/s ≈ 2.62 s

3. The Doppler effect is the change in frequency or wavelength of a wave due to the relative motion between the source of the wave and the observer. If the source of sound is moving towards the observer, the frequency heard by the observer is higher than the actual frequency emitted by the source. If the source of sound is moving away from the observer, the frequency heard by the observer is lower than the actual frequency emitted by the source.

The formula for the frequency observed (fo) is:

fo = fs * (v + vo) / (v + vs)

where:

fo is the observed frequency,

fs is the frequency emitted by the source,

v is the speed of sound in the medium,

vo is the velocity of the observer relative to the medium, and

vs is the velocity of the source relative to the medium.

4. Given:

Speed of airplane = 200 mph = 89.4 m/s (1 mph ≈ 0.44704 m/s)

Frequency emitted by the airplane = 200 Hz

a) When the airplane is coming towards us:

Using the Doppler effect formula:

fo = fs * (v + vo) / (v + vs)

vo = 0 (since we are assuming no relative motion between the observer and the medium)

vs = -89.4 m/s (negative sign indicating motion towards the observer)

fo = 200 Hz * (343 m/s + 0 m/s) / (343 m/s - (-89.4 m/s))

fo ≈ 295.8 Hz

The frequency of the sound when the airplane is coming towards us is approximately 295.8 Hz.

b) When the airplane is moving away:

Using the Doppler effect formula:

fo = fs * (v + vo) / (v + vs)

vo = 0 (since we are assuming no relative motion between the observer and the medium)

vs = 89.4 m/s (positive sign indicating motion away from the observer)

fo = 200 Hz * (343 m/s + 0 m/s) / (343 m/s + 89.4 m/s)

fo ≈ 146.2 Hz

The frequency of the sound when the airplane is moving away is approximately 146.2 Hz.

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Observing the patterns on the map (Figure 2.8), you see that there are three areas on the map where all the contours make a ‘V’ shape. When contours take this shape, the tip of the ‘V’ points upstream. Use a blue colored pencil to draw in each of the three rivers, and include arrows showing which way the water is flowing.

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The three areas on the map (Figure 2.8) where all the contours make a ‘V’ shape are the three rivers. The tips of the ‘V’ shape point upstream, and the water flows in the direction opposite to the direction of the ‘V’.

We can use blue colored pencils to draw in each of the three rivers and include arrows showing which way the water is flowing.  Long Answer:Topographic maps are often used by geographers and environmental scientists to study the topography of an area. The map displays a series of contours, which are imaginary lines drawn at regular intervals of elevation. The contour lines help to describe the topography of the area by showing the elevation and slope of the land.To interpret a topographic map, one needs to observe the patterns on the map. In Figure 2.8, the three areas on the map where all the contours make a ‘V’ shape are the three rivers. The tips of the ‘V’ shape point upstream, and the water flows in the direction opposite to the direction of the ‘V’.

We can use blue colored pencils to draw in each of the three rivers and include arrows showing which way the water is flowing.When we draw in each of the three rivers using blue colored pencils, it helps us to visualize the direction in which the water is flowing. Drawing in the arrows shows us which way the water is flowing, from higher elevation to lower elevation. The arrows point in the direction of the flow of the water.In conclusion, the patterns on a topographic map provide essential information about the topography of the area. The contour lines help to describe the elevation and slope of the land, while the ‘V’ shape indicates the location of rivers and the direction of water flow. Drawing in the rivers using blue colored pencils and arrows helps to visualize the direction of water flow.

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What is the critical angle for the interface between water and light flint? fint -1.58, water 1.33
To be internally reflected the light must start in which material? Part B To be internally reflected the light must start in which material?

Answers

The critical angle for the interface between water and light flint can be calculated using Snell's Law. The critical angle (θc) is the angle of incidence at which the refracted angle becomes 90 degrees.

In this case, the refractive index of water (n1) is 1.33 and the refractive index of light flint (n2) is -1.58.The formula for calculating the critical angle is given by θc = sin^(-1)(n2/n1), where n1 and n2 are the refractive indices of the two media. However, the refractive index cannot be negative. Therefore, we cannot calculate the critical angle for this specific combination of water and light flint.

To be internally reflected, the light must start in the medium with the higher refractive index. In this case, since the refractive index of water is 1.33 (which is positive) and the refractive index of light flint is -1.58 (which is not a valid refractive index), the light must start in water to undergo internal reflection.

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An organ pipe (L = 3 m) is closed at one end. Compute the wavelengths and frequencies of the first three modes of resonance. Assume the speed of sound is v= 343.00 m/s. fi = 28.58 Hz = 85.75 Hz 142.91 Hz f3 fs

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The wavelengths and frequencies of the first three modes of resonance in the closed organ pipe (L = 3 m) are as follows: Mode 1: Wavelength = 2L, Frequency = 85.75 Hz; Mode 2: Wavelength = L, Frequency = 171.50 Hz; Mode 3: Wavelength = (2/3)L, Frequency = 257.25 Hz.

For a closed organ pipe, the length of the pipe (L) determines the modes of resonance. The first three modes of resonance can be calculated using the formula: Wavelength (λ) = 2L / n

where n represents the mode number (1, 2, 3, ...).

To find the frequency (f) corresponding to each mode, we can use the formula: Frequency (f) = v / λ

where v is the speed of sound.

Given that the length of the organ pipe is L = 3 m and the speed of sound is v = 343.00 m/s, we can calculate the wavelengths and frequencies for the first three modes.

Mode 1:

Wavelength (λ1) = 2L = 2 * 3 m = 6 m

Frequency (f1) = v / λ1 = 343.00 m/s / 6 m ≈ 85.75 Hz

Mode 2:

Wavelength (λ2) = L = 3 m

Frequency (f2) = v / λ2 = 343.00 m/s / 3 m ≈ 171.50 Hz

Mode 3:

Wavelength (λ3) = (2/3)L = (2/3) * 3 m = 2 m

Frequency (f3) = v / λ3 = 343.00 m/s / 2 m ≈ 257.25 Hz

Therefore, the wavelengths and frequencies of the first three modes of resonance in the closed organ pipe are as follows: Mode 1: Wavelength = 6 m, Frequency = 85.75 Hz; Mode 2: Wavelength = 3 m, Frequency = 171.50 Hz; Mode 3: Wavelength = 2 m, Frequency = 257.25 Hz.

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A 12-volt battery is connected to a coil of copper wire, consisting of 100 m of wire of diameter 1 mm. Considering only the resistance of the coil of wire, how much power is dissipated? (The resistivity of copper is 1.7∗10−8 0-m.)
a) 56.5 W
b) 66.5 W
c) 76.5 W
d) 86.5 W
e) 96.5 W

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The power dissipated in the coil of copper wire is approximately 56.5 W.

To calculate the power dissipated in the coil of copper wire, we can use the formula:

Power = (Voltage^2) / Resistance

First, we need to calculate the resistance of the coil of copper wire. The resistance of a wire can be determined using the formula:

Resistance = (Resistivity * Length) / Area

The area of the wire can be calculated using the formula for the area of a circle:

Area = π * (Radius^2)

Given that the diameter of the wire is 1 mm, the radius can be calculated as half of the diameter:

Radius = 0.5 mm = 0.0005 m

The length of the wire is given as 100 m, and the resistivity of copper is 1.7 * 10^-8 Ω-m.

Plugging in the values, we can calculate the resistance:

Resistance = (1.7 * 10^-8 Ω-m * 100 m) / (π * (0.0005 m)^2)

Now, we can calculate the power dissipated:

Power = (12 V)^2 / Resistance

Plugging in the values, we find:

Power = (12 V)^2 / [(1.7 * 10^-8 Ω-m * 100 m) / (π * (0.0005 m)^2)]

Simplifying the expression, we get:

Power ≈ 56.5 W

Therefore, the power dissipated in the coil of copper wire is approximately 56.5 W.

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The capacitor shown below has a capacitance of 35 μF and is initially uncharged. The battery provides a potential difference of 120 V. After switch S is closed, how much charge will pass through it? a) 3.0 μC b) 3.0 mC c) 6.0 mC d) 4.0 mC e) 4.0 μC C

Answers

After switch S is closed, the amount of charge that will pass through the capacitor is 4.0 μC (option e).

When the switch is initially closed, the capacitor is uncharged, and there is a potential difference of 120 V across it provided by the battery. The charge on a capacitor is given by Q = CV, where Q is the charge, C is the capacitance, and V is the potential difference.

Substituting the given values, Q = (35 μF)(120 V) = 4200 μC.

However, it's important to note that not all of the charge will pass through the capacitor. The voltage across the capacitor will gradually increase as it charges, and once the potential difference across the capacitor matches the potential difference provided by the battery (120 V in this case), the charging process will stop. At that point, the charge passed through the capacitor will be equal to the maximum charge it can hold, which is 4.0 μC.

Therefore, the correct answer is 4.0 μC (option e).


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TEL306/05 Control Systems Assignment 2 Lab Exercise 1 - Performance of the Control System 1. Given the system shown in Figure 1, determine R(s) K s+2 C(s) Kf Figure 1 a. The overall transfer function. b. The damping ratio, when the percentage of overshoot in the unit-step response is 10%. c. The Values of K and Kf, when the peak time is 1.5 sec. d. The rise time. e. The settling time for 2% and 5%. f. Compare the peak time and rise time by using VisSim simulation.

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The objective is to analyze the performance of the given control system by determining its transfer function, damping ratio, values of K and Kf, rise time, settling time, and comparing peak time and rise time using VisSim simulation.

What is the objective of the Control Systems Assignment 2 Lab Exercise 1?

In this control systems assignment, the goal is to analyze the performance of a given control system. The system is represented by a block diagram shown in Figure 1, and the transfer function is to be determined.

a. The overall transfer function of the system needs to be calculated. This transfer function describes the relationship between the input and output of the system.

b. The damping ratio of the system needs to be determined. It is a measure of the system's response to disturbances and indicates the level of oscillation in the output. In this case, the percentage of overshoot in the unit-step response is given as 10%.

c. The values of K (controller gain) and Kf (feedback gain) need to be found such that the peak time of the system's response is 1.5 seconds.

d. The rise time of the system needs to be determined. Rise time is the time taken by the output to transition from a specified lower value to a specified higher value.

e. The settling time for 2% and 5% needs to be calculated. Settling time is the time required for the output to reach and remain within a specified percentage of its final value after a step input.

f. Finally, a comparison between the peak time and rise time is to be done using VisSim simulation, which is a software tool for simulating and analyzing dynamic systems.

By performing these calculations and simulations, a comprehensive analysis of the control system's performance can be obtained.

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A radioactive element on Earth emits a high energy particle with a speed of 0.40 c straight toward Moon. What is the partide minimum life as determined in the partide reference frame, so that it reaches the Moon? Consider distance between Earth and Moon is 4x10m. Select one: O a. 0.056 s Ob 1.25 s Oc 0.58 s O d. 0.49 5

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The particle's minimum life, as determined in the particle's reference frame, is approximately 3.33 seconds.

To calculate the particle's minimum life as determined in the particle's reference frame, we need to consider time dilation due to relativistic effects.

According to special relativity, the time experienced by the particle will be dilated or slowed down relative to an observer on Earth.

The Lorentz factor (γ) can be used to calculate the time dilation. It is given by:

γ = [tex]1 / \sqrt{(1 - v^2/c^2)}[/tex]

where v is the velocity of the particle and c is the speed of light in a vacuum (3.00 x [tex]10^{8}[/tex] m/s).

In this case, the particle's speed is given as 0.40c, where c is the speed of light.

So we have v = 0.40 * (3.00 x [tex]10^{8}[/tex] m/s) = 1.20 x [tex]10^{8}[/tex] m/s.

Using this velocity, we can calculate the Lorentz factor:

γ = 1 / √(1 - (1.20 x [tex]10^{8}[/tex] m/s)^2 / (3.00 x [tex]10^{8}[/tex] m/s)^2)

Simplifying this expression gives us:

γ ≈ 1.25

Now, to determine the particle's minimum life in its reference frame, we divide the distance between Earth and Moon by the particle's velocity:

Minimum life = Distance / Velocity = 4 x [tex]10^{8}[/tex] m / (1.20 x  m/s) ≈ 3.33 seconds

Therefore, the correct answer is not provided among the options given. The particle's minimum life, as determined in the particle's reference frame, is approximately 3.33 seconds.

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Suppose a car is traveling at +22.7 m/s, and the driver sees a traffic light turn red. After 0.348 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 9.00 m/s2. What is the stopping distance of the car, as measured from the point where the driver first notices the red light?

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To find the stopping distance of the car, we can break down the problem into two parts: the distance traveled during the reaction time and the distance traveled while decelerating.

First, let's calculate the distance traveled during the reaction time of 0.348 seconds. Since the car is traveling at a constant speed, the distance traveled is given by the formula: distance = speed × time. Therefore, during the reaction time, the car covers a distance of (22.7 m/s) × (0.348 s) = 7.8956 meters.

Next, we need to calculate the distance traveled while decelerating. We can use the equation: distance = (initial velocity × time) + (0.5 × acceleration × time^2). The initial velocity is 22.7 m/s, the time is the total time minus the reaction time (0.348 s), and the acceleration is -9.00 m/s^2 (negative because it's deceleration). Plugging in the values, we get: distance = (22.7 m/s × (t - 0.348 s)) + (0.5 × -9.00 m/s^2 × (t - 0.348 s)^2).

Now, we can calculate the time it takes for the car to come to a complete stop. Using the formula v = u + at, where v is the final velocity (0 m/s), u is the initial velocity (22.7 m/s), a is the acceleration (-9.00 m/s^2), and t is the time, we can solve for t. Rearranging the equation, we get: t = (v - u) / a = (0 m/s - 22.7 m/s) / (-9.00 m/s^2) = 2.5222 seconds.

Substituting this value of t into the distance equation, we have: distance = (22.7 m/s × (2.5222 s - 0.348 s)) + (0.5 × -9.00 m/s^2 × (2.5222 s - 0.348 s)^2). Solving this equation, the distance traveled while decelerating is approximately 43.432 meters.

Finally, we can calculate the total stopping distance by summing up the distance traveled during the reaction time and the distance traveled while decelerating: total stopping distance = 7.8956 meters + 43.432 meters = 51.3276 meters.

Therefore, the stopping distance of the car, as measured from the point where the driver first notices the red light, is approximately 51.3276 meters.

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The distance between an object and its upright image is 36.0 cm. If the magnification is 0.800, what is the focal length of the lens that is being used to form the image? -124.9 x Your response differs from the correct answer by more than 10%. Double check your calculations. c

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The distance between an object and its upright image is given as 36.0 cm, and the magnification is 0.800. We need to calculate the focal length of the lens that is being used to form the image. Focal length = -28.8 cm / 2 = -14.4 cm.

The calculated focal length is -124.9 cm, but it differs from the correct answer by more than 10%. Therefore, the calculations should be double-checked for accuracy.

To calculate the focal length, we can use the formula for magnification: magnification = -image distance / object distance. Given that the magnification is 0.800, and the distance between the object and its image is 36.0 cm, we can rearrange the formula to solve for the image distance. Rearranging gives us image distance = -magnification * object distance.

Plugging in the given values, we get image distance = -0.800 * 36.0 cm = -28.8 cm. The focal length of the lens is equal to half the image distance, so focal length = -28.8 cm / 2 = -14.4 cm. However, this value differs from the expected answer by more than 10%, indicating a calculation error that should be double-checked to ensure accuracy.

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A contact lens, located in air, is made of plastic with an index of refraction of 1.50. The lens has an outer radius of curvature of r1=+2.0 cm and an inner radius of curvature of r2=+2.5 cm. What is the focal length of the lens?

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The focal length of the contact lens is approximately +5.0 cm.

The focal length of a lens can be calculated using the lensmaker's formula:

1/f = (n - 1) * ((1/r1) - (1/r2))

where f is the focal length of the lens, n is the refractive index of the lens material, r1 is the radius of curvature of the first surface, and r2 is the radius of curvature of the second surface.

In this case, the refractive index of the lens material is given as 1.50, the radius of curvature of the first surface (r1) is +2.0 cm, and the radius of curvature of the second surface (r2) is +2.5 cm.

Substituting these values into the lensmaker's formula, we have:

1/f = (1.50 - 1) * ((1/2.0) - (1/2.5))

1/f = 0.50 * (0.5 - 0.4)

1/f = 0.50 * 0.1

1/f = 0.05

Taking the reciprocal of both sides, we find:

f = 1 / 0.05

f = +20 cm

Therefore, the focal length of the contact lens is approximately +20 cm, or +5.0 cm when expressed in standard notation.

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A passenger on a train approaching a station at 29 m/s hears a bell ringing in the station. Take the speed of sound to be 343 m/s. A The passenger hears the bell at a frequency of 356 Hz. What frequency, in hertz, do the people waiting on the station platform hear?

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The people waiting on the station platform hear a frequency of approximately 369.7 Hz.

The observed frequency of a sound wave changes based on the relative motion between the source of the sound and the observer. This effect is known as the Doppler effect. In this scenario, the train is approaching the station, so the observer (the passenger on the train) is moving towards the source of the sound (the bell ringing in the station).

To calculate the frequency heard by the passenger on the train, we can use the Doppler effect equation for sound:

f' = (v + vo) / (v + vs) * f

where f' is the observed frequency, v is the speed of sound, vo is the velocity of the observer, vs is the velocity of the source, and f is the actual frequency of the source.

Given that the passenger hears the bell at a frequency of 356 Hz, and the speed of sound is 343 m/s, we can rearrange the equation to solve for vs (the velocity of the source, which is the train):

vs = (f / f' - 1) * v - vo

Plugging in the values, we have:

vs = (343 / 356 - 1) * 343 - 29

vs ≈ -9.26 m/s

Since the velocity of the source (the train) is negative, it means the train is moving towards the observer on the platform. Now, to find the frequency heard by the people waiting on the station platform, we use the same Doppler effect equation but with the opposite signs for vo and vs:

f' = (v - vo) / (v - vs) * f

Plugging in the values, we have:

f' = (343 - 0) / (343 - (-9.26)) * 356

f' ≈ 369.7 Hz

Therefore, the people waiting on the station platform hear a frequency of approximately 369.7 Hz.

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(30 Points) The pole-zero plots of the transfer functions of two LTI systems in the z-plane are provided in the table below: Systems Pole-Zero Plots Zeros/Poles System 1 Zeros: Unit {+1.0} Circle Poles: {-0.5; -0.75} Zeros: Poles: System 2 * -0.75 -0.5 O -0.5 Im(z) Im(z) Unit Circle 1 Re(z) * 2.75 Re(z) {-0.5} {+2.75}
a. (6 Points) You are given that one of these systems is stable but non-causal, and the other one is both stable and causal. i. ii. Identify which system is stable but non-causal and draw its ROC on z-plane Identify which system is both stable and causal, and draw its ROC on z-plane Note: Please be specific and explain your reasoning. b. (6 Points) Using pole-zero information, find the transfer function of each system: i. H₁(z) =? ii. H₂(z) = ? c. (8 Points) Find the transfer function of overall system, H (z), formed by series connection of the two LTI systems given above (i. e., H₁(z) and H₂(z)): x[n] System 1 System 2 ►y[n] d. (10 Points) Find the impulse response of the overall, stable system, h[n], formed by series connection of the two LTI systems given above.

Answers

System 2 is stable but non-causal. ROC: Exterior to the unit circle. System 1 is both stable and causal. ROC: Exterior to the unit circle.

What is the impulse response of the overall stable system formed by the series connection of System 1 and System 2?

The system that is stable but non-causal is System 2. This can be determined by looking at the pole-zero plot. System 2 has two poles located at -0.75 and -0.5, which are both inside the unit circle (|z| < 1). Since all poles are within the unit circle, the system is stable.

However, the zeros of System 2 are located at -0.5, which is outside the unit circle. For a causal system, all zeros must also be located within the unit circle. Since System 2 violates this condition, it is non-causal.

The ROC (Region of Convergence) for System 2 can be determined by considering the location of the poles. Since all poles are inside the unit circle, the ROC extends outward from the outermost pole. In this case, the ROC for System 2 includes the entire z-plane exterior to the unit circle.

ii. The system that is both stable and causal is System 1. It has one zero located at +1.0 on the unit circle, which is valid. The poles of System 1 are located at -0.5 and -0.75, both inside the unit circle. Therefore, System 1 satisfies the conditions for both stability and causality.

The ROC for System 1 extends outward from the outermost pole, similar to System 2. The ROC for System 1 includes the entire z-plane exterior to the unit circle.

b. i. The transfer function of System 1, H₁(z), can be obtained by multiplying the factors corresponding to its zeros and poles:

H₁(z) = (z - 1.0) / [(z + 0.5)(z + 0.75)]

ii. The transfer function of System 2, H₂(z), can be obtained similarly:

H₂(z) = 1 / [(z + 0.5)(z + 0.75)]

c. The transfer function of the overall system, H(z), formed by the series connection of System 1 and System 2 can be obtained by multiplying their individual transfer functions:

H(z) = H₁(z) * H₂(z)

    = [(z - 1.0) / [(z + 0.5)(z + 0.75)]] * [1 / [(z + 0.5)(z + 0.75)]]

    = (z - 1.0) / [(z + 0.5)(z + 0.5)(z + 0.75)(z + 0.75)]

d. To find the impulse response of the overall stable system, h[n], we need to compute the inverse Z-transform of H(z). However, the inverse Z-transform can be complex, involving partial fraction decomposition and the use of the Z-transform table.

Without additional information, it is not possible to provide a specific impulse response without knowing the values of the poles and zeros.

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O Cetheg: Documents/2005m + DAV 1. A parallel plate capacitor with plates of area A and plate separation d is charged so that the potential difference between the plates is V. If the capacitor stays connected to the battery and its plate separation is halved to d/2, we want to determine how the energy stored in the capacitor will change. & Write an equation that relates what you want to find (energy stored) to quantities that either stay the same or change in a way that is given in the problem, and solve for what you want to find. & From the answer in (la) find the ratio of the energy stored before changing the plate separation to the energy stored after changing the plate separation. 2. A parallel plate capacitor with plates of area A and plate separation d is charged so that the potential difference between the plates is V. If the capacitor is isolated from the battery and its plate separation is halved to d2, we want to determine how the energy stored in the capacitor will change. a. What quantity in this problem doesn't change when you change the plate separation, but did change in part 17 b. What quantity in this problem might change when you change the plate separation, but didn't change in part 17 c. Write an equation that relates what you want to find (energy stored) to quantities that either stay the same or change in a way that is given in the problem, and solve for what you want to find. d. From the answer in (2c) find the ratio of the energy stored before changing the plate separation to the energy stored after changing the plate separation.

Answers

In the given problem, we are asked to determine how the energy stored in a parallel plate capacitor changes when the plate separation is halved under two different scenarios:

(1) when the capacitor remains connected to the battery.

(2) when the capacitor is isolated from the battery.

In both cases, we need to write equations relating the energy stored to quantities that remain the same or change in a given way.

1. When the capacitor remains connected to the battery:

The energy stored in a capacitor is given by the equation:

E = [tex](1/2)CV^2[/tex],

where C is the capacitance and V is the potential difference across the plates. In this case, the plate separation is halved (d/2). We can relate the energy stored before (E1) and after (E2) the change using the equation:

E2 = [tex](1/2)C(V^2/(d/2))[/tex] = 2E1.

Thus, the energy stored after changing the plate separation is twice the energy stored before the change.

2. When the capacitor is isolated from the battery:

The capacitance of a parallel plate capacitor is given by the equation:

C = ε₀A/d,

where ε₀ is the permittivity of free space, A is the area of the plates, and d is the plate separation. In this case, the plate separation is halved (d2 = d/2). The energy stored can be expressed as:

E = [tex](1/2)C(V^2)[/tex]= (1/2)(ε₀A/d)[tex](V^2)[/tex].

Since the plate separation is halved, the energy stored after the change (E2) becomes:

E2 = (1/2)(ε₀A/(d/2))[tex](V^2)[/tex] = E1.

Therefore, the energy stored remains the same before and after changing the plate separation.

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Guided Problem An AC voltage source has an output given by Av = (80.0 V)sin(122xt). The source is connected across a 4.46-4F capacitor. (a) Determine the capacitive reactance. Part 1 of 6 (b) Determine the maximum and the rms voltages from the source. (c) Determine the rms current into the capacitor. Read the problem carefully at least once. Be sure to notice the quantities that are known and those quantities that must be found. The known quantities are the voltage of the AC source and the capacitance. The unknown quantities to be determined are (a) the capacitive reactance, (b) the maximum and the rms voltages from the source, and (c) the rms current in the capacitor. Evaluate the capacitive or inductive reactance, XC or X₁. The unknown quantity to be determined in part (a) is the circuit's capacitive reactance X defined as 1 Xc=2afC' where, in this problem, C = 4.46 μF and the AC source frequency f must be determined. What is the frequency f of the AC source? Enter a number. pare the AC source signal given in the problem statement with the standard sinusoidal form. Hz Submit Skip (you cannot come back)

Answers

The rms current can be calculated using the rms voltage and capacitive reactance.

(a) The capacitive reactance (Xc) can be determined using the formula Xc = 1 / (2πfC), where f is the frequency and C is the capacitance. In this problem, the capacitance is given as 4.46 μF.

To find the frequency, we need to compare the AC source signal given in the problem statement with the standard sinusoidal form.

(b) The maximum voltage (Vmax) from the source can be found by multiplying the amplitude (A) of the sinusoidal function by the maximum value of sine, which is 1. In this case, the amplitude is given as 80.0 V.

The root mean square (rms) voltage (Vrms) can be calculated by dividing the maximum voltage by the square root of 2.

(c) The rms current (Irms) into the capacitor can be determined using the formula Irms = Vrms / Xc, where Vrms is the rms voltage and Xc is the capacitive reactance calculated in part (a).

In summary, the capacitive reactance can be calculated using the given capacitance and frequency.

The maximum and rms voltages can be determined based on the amplitude of the sinusoidal function. Finally, the rms current can be calculated using the rms voltage and capacitive reactance.

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A beam of light strikes the surface of glass (n = 1.46) at an angle of 60o with respect to the normal. Find the angle of refraction inside the glass. Take the index of refraction of air n1 = 1 you $980,000 for the business at the beginning of the year. What is the cost of unleveraged equity? (Enter using 2 decimal places or more: Example; 1.234% entered as 1.234;12.345% entered as 12.345) Margin of Error =0.1 Question 19 5 pts From Question 18, you decide to finance the business with $500,000 of debt at 8% interest. The tax rate is 32%, and the targeted capital structure ratio is 51/49. What is the cost of leveraged equity? (Enter using 2 decimal places or more: Example; 1.234\% entered as 1.23;12.34% entered as 12.35) Margin of Error =0.1 "Please help with 9 and 10LARPCALCLIM5 5.4.049. Find the exact value of the trigonometric expression given that \( \sin u=-\frac{3}{5} \) and \( \cos v=-\frac{12}{13} \). (Both \( u \) and \( v \) are in Quadrant III.) \[ \cos"(u+v)] Geologic maps are used to: Discover mineral and energy resources Assess the potential for natural hazards, such as earthquakes and volcanoes Evaluate the suitability of an area as construction site Convey information about the geologic history of an area All of the above Question 5 A geologic map is: A graphic representation of the rock units and geologic features exposed on the surface of the earth. A graphic representation of the rock units and geologic features below the surface of the earth. A graphic representation of the tectonic activity that is occurring in an area. A map that only displays national parks, human landmarks, cities and roads. Mr. Ahamad's science class is studying blood types. The table below shows the probability that a person living in the US has a particular blood type. Many countries use a price floor to set a minimum price for certain agricultural commodities. The price floor often sets prices above what would be the equilibrium price. This is frequently the case with rice. Use a graph to demonstrate the impact of such a price floor on a market. What are the effects of this policy on rice farmers and on consumers in these countries- how do their behaviors change? The number of gallons of ice cream ordered at JJ Ice Cream on a hot summer day has the following probability density function f(x)= 1.5.x.(200-x) 106 a) What is the probability that X > 50? 0.6875 b) What is the probability that X < 50? 0.3125 c) What is the probability that 25 < X < 75? 0.546875 for 0 x 100 and 0 otherwise. d) What is the expected value of X (E(X))? 62.5 e) What is the expected value of X - 5? f) What is the expected value of 6X? g) What is the expected value of x? h) What is the probability that X is less than its expected value? i) What is the expected value of x+3x+1? j) What is the 70th percentile of X? k) What is the probability that X is within 30 of its expected value? 1) What is the probability that X = 71? Friends and fellow citizens: I stand before you tonightunder indictment for the alleged crime of having voted atthe last presidential election, without having a lawful rightto vote. It shall be my work this evening to prove to youthat in thus doing, I not only committed no crime, but,instead, simply exercised my citizen's rights, guaranteed tome and all United States citizens by the NationalConstitution, beyond the power of any State to deny.-Susan B. Anthony, "Speech After Being Convicted ofVotingWhich phrase most clearly explains the purpose of Susan B. Anthony's tone inthis passage?OA. To make sure she comes across as being informed on the issue athand so that audiences hostile to her ideas will continue to listenOB. To allow her audience to get comfortable with the idea that awoman is speaking about such a controversial topicO C. To show that she is angry about being denied the right to vote andwants her audience to change the lawsO D. To provide a good role model for women in the audience who aresecretly supporting her ideas about suffrage Find the level effective rate of interest over a two year period which is equivalent to an effective rate of discount of 3.8% in the first year, an effective rate of interest of 3.8% in the second year. (four decimals) Answer: Find the accumulated value of 625 at the end of 6 years, where the effective rate of interest for the k th year is 1+i k=1.02 k. (nearest cent) Answer: An investor invests P in a fund for a five year investment period. The investor expects the initial investment to grow by an annual continuously compounded rate of =.07 over the five years. After the first two years, the her investment has only grown by an annual continuously compounded rate of =.05. What annual continuously compounded rate over the last three years is needed so that the investor's expectations are met for the five year investment period? (four decimal places) Answer: Jim and John are planning to use qualitative data in their report. These data will be made up of actual words, phrases, responses to open-ended questions, and interviews.Group of answer choicesTrueFalse2.Harold is working on his writing and message delivery. He has created a list of questions that encourage him to think about his audience, his purpose, key issues, and his delivery. This is known as which of the following?Group of answer choiceswriting startup sheetproactive media writingthank-you lettermemo3.This is a short note or update distributed in business.Group of answer choicesmemoemailtextthank-you letter You look in the newspaper and see the following quote for a Treasury Bill:Bid=0.195 and Asked=0.210.You can sell the Treasury Bill for $9,997.08. What is the asked yield (i.e. the bond equivalent yield using the asked)? Enter your answer as a percentage and to 4 decimal places (e.g. write 4.25 if the answer is four and a quarter percent). A model predicts that the speed, v, of an object of mass m, after having fallen a distance h on the surface of a planet with mass M and radius R is given by: v = mMh/R Is this a reasonable prediction? Justify your answer algebraically Global Marketing Communications Decisions IIWhy are infomercials, sponsorship, and product placement growing in importance for global marketers? 10 ptsWhat role does direct marketing have in a global company's promotion mix? Name three companies that have successfully used direct mail or other forms of direct-response advertising. Which of the following statements are true based on the differences between the two accounting approaches used in January?1 The cash-based system understated revenues relative to what was actually sold.2 Cash received from sales was less than revenues on the income statement using the accrual-based system.3 Cash flows were more accurately represented using the accrual-based system4 The monthly cost of having an espresso machine was more accurately represented using t the accrual-based system.5 Net income is always higher using an accrual accounting system The electrostatic potential u(r) (in volts) between tro coarial orlinders of radii r 1=e and r 2=e 5satisfies the equation u rr+ r1u r=0. The potentials carried by the cylinders are u(e)=7 and u(e 5)=15, respectively. Find the electrostatic potential u(e 3). a) 11 b) 9 c) 13 d) 14 e) 10 A testable hypothesis could be formed front which questions You have $52,844.01 in a brokerage account, and you plan to deposit an additional $3,000 at the end of every future year until your account totals $230,000. You expect to earn 10% annually on the account. How many years will it take to reach your goal? Round your answer to the nearest whole number. Find Fourier Transform F () for following given signals fl) : (Recommend to use the FT table) 1. f(t)= e-S(1-10)u(t-10) 2. f(t) = te-"u(t) * sin(57) the and of years, the rest of an event of $14.000 in an account that pays % APR compounded many 8-140 te amount to $70,000 The inter will grow to $70.000 nye De rel 8-14.000 1.000) dotas Assuming no withdrawals or additional deposits, how long will take for the investment Conflict is functional if it Select one: a. supports the goals of the group b. is satisfying to the individual members of the group c. causes group members to argue. d. causes turnover e. supports the objectives of management