2.00 cm, and R3-2.50 cm. Graph B from R-0 Let 10 = 1.50 A. R1 = 1.00 cm, R2 to R 3.00 cm Problem 28.31 A coaxial cable consists of a solid inner conductor of radius R1 surrounded by a concentric cylindrical tube of inner radius R2 and outer radius R3 (the figure) The conductors carry equal and opposite currents Io distributed uniformly across their cross sections + add graphadd pointsdelete graphi graph inforeset? help 3.0 2.5 2.0 Figure 1 ▼1of1 1.5 1.0 0.5 0.5 1.0 1.5 2.0 2.5 3.0 R (em)

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Answer 1

A coaxial cable consists of a solid inner conductor of radius R1 surrounded by a concentric cylindrical tube of inner radius R2 and outer radius R3. The conductors carry equal and opposite currents Io distributed uniformly across their cross sections. The coaxial cable can be divided into three regions: inside the inner conductor, between the conductors, and outside the outer conductor. Each region is a cylinder and is characterized by its radius, its current density, and the direction of the current. The current density is uniform throughout each region. The coaxial cable is a good example of a cylindrical conductor with a uniform current density.

To calculate the magnetic field outside the outer conductor, the following formula can be used:

B = (μo / 2π) Io R2^2 / (R3^2 − R2^2)

The magnetic field is proportional to the current, the radius of the inner conductor, and the distance from the center of the inner conductor. As R3 approaches infinity, the magnetic field decreases, so the coaxial cable becomes less effective as an antenna.

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Related Questions

suppose that you have a reflection diffraction grating with n= 140 lines per millimeter. light from a sodium lamp passes through the grating and is diffracted onto a distant screen.

Answers

The angular positions of the first three orders of interference fringes on the screen are 5.73 × 10⁻⁶ rad, 11.47 × 10⁻⁶ rad, and 17.20 × 10⁻⁶ rad.

The distances between the central fringe and the first, second, and third order fringes are 0.0088 m, 0.0176 m, and 0.0264 m respectively.

Suppose you have a reflection diffraction grating with n = 140 lines per millimeter. Light from a sodium lamp passes through the grating and is diffracted onto a distant screen. It is required to determine the angular positions of the first three orders of interference fringes on the screen.

The grating equation is given by:d sin θ = mλ

Where:d is the spacing between grating linesθ is the angle of diffractionm is the order of the diffractionλ is the wavelength of light

From the above equation, it can be concluded that the angle of diffraction is inversely proportional to the number of lines on the grating, so the greater the number of lines, the smaller the angle of diffraction. The first order of diffraction is obtained for m = 1.

Therefore, the angle of diffraction is given by: d sin θ = mλsin θ = mλ/dsin θ = λ/d = 5.73 × 10⁻⁶ rad

The distance between the central fringe and the first order fringe can be calculated using the formula:y = L tan θy = L tan (λ/d)y = 0.0088 m

Similarly, the second-order diffraction is obtained for m = 2, so sin θ = 2λ/d and θ = 11.47 × 10⁻⁶ rad. The distance between the central fringe and the second order fringe can be calculated as:

y = L tan θy

= L tan (2λ/d)

y = 0.0176 m

Lastly, for m = 3,

sin θ = 3λ/d and

θ = 17.20 × 10⁻⁶ rad.

The distance between the central fringe and the third order fringe can be calculated as:y = L tan θy = L tan (3λ/d)y = 0.0264 m

The angular positions of the first three orders of interference fringes on the screen are 5.73 × 10⁻⁶ rad, 11.47 × 10⁻⁶ rad, and 17.20 × 10⁻⁶ rad. The distances between the central fringe and the first, second, and third order fringes are 0.0088 m, 0.0176 m, and 0.0264 m respectively.

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A 66 Kg Child Steps Onto A Scale And The Scale Reads 645 N. What Is The Magnitude Of The Normal Force Acting On The Child?
1)645 N
2)860 N
3)215 N
4)430 N


Answers

The magnitude of the normal force acting on the child is 645 N.

What is the magnitude of the normal force acting on the child when the scale reads 645 N?

The magnitude of the normal force acting on the child is equal to the reading on the scale, which is 645 N.

When the child steps onto the scale, the scale measures the force exerted by the child's weight. According to Newton's third law of motion, the force exerted by the child on the scale is equal in magnitude and opposite in direction to the normal force exerted by the scale on the child. In this case, the scale reading of 645 N represents the magnitude of the normal force, which is equal to the child's weight.

The normal force is a contact force exerted by a surface to support the weight of an object resting on it. In this scenario, the normal force from the scale balances the downward force of gravity acting on the child, resulting in a stable equilibrium. The magnitude of the normal force is determined by the weight of the child, which in this case is 645 N.

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Why do you think a large number of recent immigrants from China,
India and Hong Kong are located in Vancouver?

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Vancouver attracts a large number of recent immigrants from China, India, and Hong Kong due to various factors such as geographic proximity, economic opportunities, cultural diversity, and established immigrant communities.

What factors contribute to the large number of recent immigrants from China, India, and Hong Kong in Vancouver?

Vancouver's appeal to recent immigrants from China, India, and Hong Kong can be attributed to several factors. Firstly, its geographic proximity to these regions makes it a convenient choice for immigrants seeking a new life in North America.

Additionally, Vancouver offers a thriving economy with job opportunities across various sectors, attracting skilled professionals and entrepreneurs. The city's diverse and multicultural environment also provides a welcoming and inclusive atmosphere for individuals from different backgrounds.

Moreover, Vancouver has well-established immigrant communities from China, India, and Hong Kong, providing social support networks, familiar cultural settings, and resources for newcomers. These communities offer a sense of belonging and help ease the transition into a new country. Furthermore, the availability of educational institutions, healthcare services, and a high standard of living contribute to Vancouver's appeal as a destination for immigrants.

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A proton with mass 1.7e-27 kg is moving with a speed of 2.8e8 m/s. a) What is the total energy of this proton? b) What is the kinetic energy of this proton?

Answers

The kinetic energy of the proton is 6.834 × 10^-11 J. Therefore, the total energy of the proton is 6.834 × 10^-11 J and the kinetic energy of the proton is also 6.834 × 10^-11 J.

Given, Mass of proton, m = 1.7 × 10^-27 kg Speed of proton, v = 2.8 × 10^8 m/s . We know that the energy of a body is given by the formula E = (1/2)mv² .

Here, the total energy of proton (E) can be given as E = (1/2) × m × v²Let's substitute the given values.  E = (1/2) × m × v²E = (1/2) × 1.7 × 10^-27 kg × (2.8 × 10^8 m/s)²E = 6.834 × 10^-11 J .

The total energy of proton is 6.834 × 10^-11 J Now, let's find the kinetic energy of the proton. Kinetic energy of the proton is given by the formula KE = (1/2)mv².

Let's substitute the given values and get the answer.KE = (1/2) × m × v²KE = (1/2) × 1.7 × 10^-27 kg × (2.8 × 10^8 m/s)²KE = 6.834 × 10^-11 J . The kinetic energy of the proton is 6.834 × 10^-11 J. Therefore, the total energy of the proton is 6.834 × 10^-11 J and the kinetic energy of the proton is also 6.834 × 10^-11 J.

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the electric field inside a parallel-plate capacitor is 200 n/c. if the area of each plate is doubled, then, the electric field inside the capacitor:

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In this case, the area of each plate has been doubled, which means that the distance between the plates will be halved. As a result, the electric field strength will be halved.

A parallel plate capacitor is made up of two parallel plates and can store charge between them. Its electric field is given by the equation: E = σ / ε0where E is the electric field, σ is the surface charge density, and ε0 is the permittivity of free space.

The electric field inside a parallel-plate capacitor is 200 n/c. If the area of each plate is doubled, the electric field inside the capacitor will be halved (100 n/c). This is because the electric field is inversely proportional to the distance between the plates which is proportional to the area of the plates if the distance between them remains the same.

Therefore, when the area of each plate is doubled, the distance between them is halved, and hence the electric field is also halved. we can say that the electric field between two parallel plates is uniform if the separation between them is much less than the distance from the plates. The electric field E between the plates is directly proportional to the surface charge density, σ, on either of the plates. The electric field in a parallel plate capacitor can be expressed in terms of the plate charge density or potential difference between the plates.

Electric field between plates = (potential difference between the plates) / distance between the plates This equation implies that the electric field strength between the plates will decrease as the distance between them increases. In this case, the area of each plate has been doubled, which means that the distance between the plates will be halved. As a result, the electric field strength will be halved.

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what focal length lens (in cm) should be used in the bottom half of the lens to allow her to clearly see objects 25 cm away?

Answers

The focal length of the lens should be 25 cm. We can use the lens formula: 1/f = 1/v - 1/u.

To determine the focal length of the lens needed to allow clear vision of objects 25 cm away, we can use the lens formula:

1/f = 1/v - 1/u

Where f is the focal length of the lens, v is the image distance, and u is the object distance.

In this case, the object distance (u) is 25 cm, and we want the image distance (v) to be at infinity (since the person wants to see clearly).

When the image distance is at infinity, the lens is said to be focused at infinity, and the focal length is equal to the distance between the lens and the focal point.

Therefore, the focal length of the lens should be 25 cm.

Please note that this assumes a simplified model where the eye is relaxed and does not accommodate for near vision. In practical vision correction scenarios, additional factors need to be considered, such as the power of the lens, the individual's specific visual requirements, and the presence of any refractive errors. It is recommended to consult with an optometrist or ophthalmologist for accurate vision correction.

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.Two narrow slits 60 μm apart are illuminated with light of wavelength 620nm. The light shines on a screen 1.2 m distant.
A)What is the angle of the m = 2 bright fringe?
B)How far is this fringe from the center of the pattern?

Answers

A) the angle of the m=2 bright fringe is 0.0205 radians.

B) the distance of the m=2 bright fringe from the center of the pattern is 0.0000249 m.

Given that, the distance between two narrow slits is 60 μm, and the wavelength of light used is 620 nm. The distance between the slits is given by "d" and the distance between the slits and the screen is given by "D".

We can find the angle of the m=2 bright fringe by using the formula,θ = mλ/d

Where,m = 2λ = 620 nm = 620 × 10⁻⁹m d = 60 × 10⁻⁶m

On substituting the above values in the above formula, we get,

θ = (2 × 620 × 10⁻⁹) / (60 × 10⁻⁶) = 0.0205 radians

To find how far this fringe is from the center of the pattern, we use the formula

y = (mλD) / d

Where,m = 2λ = 620 nm = 620 × 10⁻⁹m D = 1.2m d = 60 × 10⁻⁶m

On substituting the above values in the above formula, we get,

y = (2 × 620 × 10⁻⁹ × 1.2) / (60 × 10⁻⁶) = 0.0000249m

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a) The angle of the m = 2 bright fringe is 0.124 radians. ; b)The distance of the 2nd bright fringe from the center of the pattern is 0.1488 m. The distance of the nth bright fringe from the central bright fringe is given by the formula : Dn = n λ D/d,

Given that, Distance between two slits, d = 60 μm = 60 x 10⁻⁶m, Wavelength of light, λ = 620nm = 620 x 10⁻⁹mDistance from the slits to screen, D = 1.2m

(a)To find the angle of the m = 2 bright fringe, Bright fringe width is given by the relation, Y = m λ D/d Where m = 2, λ = 620 x 10⁻⁹m, D = 1.2m and d = 60 x 10⁻⁶m So, Y = 2 × 620 × 10⁻⁹ × 1.2/60 × 10⁻⁶= 2 × 0.0744= 0.1488 m. Angular width of the fringe is given by,θ = Y/D= 0.1488/1.2= 0.124 radians.

Thus, the angle of the m = 2 bright fringe is 0.124 radians.

(b)To find how far is this fringe from the center of the pattern, The distance of the nth bright fringe from the central bright fringe is given by, Dn = n λ D/d, Where n = 2, λ = 620 x 10⁻⁹m, D = 1.2m and d = 60 x 10⁻⁶m. So, D₂ = 2 × 620 × 10⁻⁹ × 1.2/60 × 10⁻⁶= 2 × 0.0744= 0.1488 m.

Thus, the distance of the 2nd bright fringe from the center of the pattern is 0.1488 m.

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• sales of the new product line are more frequently 100 percent financed in contrast to sales of the existing product lines, resulting in an increase in gross receivables.

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The sales of the new product line are more frequently 100 percent financed in contrast to sales of the existing product lines, resulting in an increase in gross receivables. This means that the company is using the gross receivables for financing the sales of the new product line.

Gross receivables are the total amounts due to a company by its customers who have purchased goods or services on credit. When a company introduces a new product line, it is usually an investment of capital that will have an impact on the sales and overall revenue of the company.

Sales of the new product line are more frequently 100 percent financed in contrast to sales of the existing product lines. It means that the company is financing the sales of the new product line through the receivables. As a result, there is an increase in gross receivables. This is because the receivables are used for financing the sales of the new product line.

The increase in gross receivables is a common occurrence when a company launches a new product line. It is because the company has to invest a lot of capital in the new product line, and the revenue generated from the sales of the new product line takes time to cover the investment made by the company. The company has to use the gross receivables to finance the sales of the new product line until it starts generating sufficient revenue.

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"sales of the new product line are more frequently 100 percent financed in contrast to sales of the existing product lines, resulting in an increase in gross receivables" means that the company is likely to have a higher level of accounts receivable due to the financing of the new product line.

Accounts receivable (AR) is the amount of money that is owed to a business by its clients. AR is regarded as a form of short-term assets that may be transformed into cash relatively easily.

A business's credit sales generate accounts receivable. When a business provides goods or services on credit, it generates accounts receivable. The revenue is not yet recorded, and payment is due at a later date.

This financial obligation is known as accounts receivable. The business can use the accounts receivable to gain access to cash.

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Two equally charged particles start 2.9 mmmm from each other at rest. When they are released they accelerate away from each other. The initial acceleration of particle A is 5 m/s2m/s2 and of particle B is 10 m/s2m/s2 .

Calculate the charge on either particle, if the mass of particle A is 5×10−7 kg .

Answers

The charges on the particles can be calculated by using Coulomb’s law which is defined as F=Kq1q2/r2, the charge on particle B is 5.20 × 10⁻¹⁹ C and charge on particle A is 2.60 × 10⁻¹⁹ C.

Now, we know the distance between the particles which is 2.9 mm. Also, the initial acceleration of particle A and particle B are 5 m/s² and 10 m/s² respectively. The mass of particle A is 5 × 10⁻⁷ kg.Let’s assume the charges on the particles to be q coulombs. The force experienced by particle A and B can be calculated as follows

Force on particle A,F₁ = ma₁ ……(1)Force on particle B,F₂ = ma₂ ……(2)From Coulomb’s law,F = Kq₁q₂/r² ……(3)Here, K = 9 × 10⁹ Nm²/C² Substituting the value of F from equation (3) in equation (1) and (2),we get;Kq₁q₂/r² = ma₁ ……(4)Kq₁q₂/r² = ma₂ ……(5) From equations (4) and (5), we get,q₁q₂ = (ma₁ × r²) / K ……(6)q₁q₂ = (ma₂ × r²) / K ……(7)  Dividing equation (6) by (7), we get;q₁/q₂ = ma₁/ma₂

Putting the values, we get;q₁/q₂ = 5/10q₁/q₂ = 1/2Now, we know that the charges on the particles have the same magnitude. Therefore, we can assume the charge on particle A as q coulombs and the charge on particle B as 2q coulombs.

Now, let's substitute the values in equations (4) and (5) to calculate the charges on the particles.F₁ = Kq₁q₂/r² = ma₁q = (ma₁ × r²) / Kq = (5 × 10⁻⁷ kg × (2.9 × 10⁻³ m)² × 5 m/s²) / (9 × 10⁹ Nm²/C²)q = 2.60 × 10⁻¹⁹ C Therefore, the charge on particle A is 2.60 × 10⁻¹⁹ C.F₂ = Kq₁q₂/r² = ma₂2q = (ma₂ × r²) / K2q = (5 × 10⁻⁷ kg × (2.9 × 10⁻³ m)² × 10 m/s²) / (9 × 10⁹ Nm²/C²)q = 5.20 × 10⁻¹⁹ C

Therefore, the charge on particle B is 5.20 × 10⁻¹⁹ C.

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Give the maximum number of electrons in an atom that can have these quantum numbers: a. n = 0, l = 0, m_l = 0 b. n = 2, l = 1. m_l = -1, m_s = -1/2 c. n = 3, m_s = +1/2 d. n = 2. l = 2 e. n = 1, l = 0, m_l = 0

Answers

Quantum numbers represent the specific properties of an electron in an atom. Answer: b. 6 electrons, d. 10 electrons, and e. 2 electrons.

To give the maximum number of electrons in an atom that can have specific quantum numbers, we need to use the Pauli exclusion principle, which states that no two electrons can have the same set of four quantum numbers. Also, the maximum number of electrons that can occupy an orbital is given by the formula 2n², where n is the principal quantum number.

Let's solve the problem using the given quantum numbers: a. n = 0, l = 0, m_l = 0

The principal quantum number cannot be zero, according to the quantum theory of matter.

Hence, the given quantum numbers are not possible. b. n = 2, l = 1, m_l = -1, m_s = -1/2

Here, the maximum number of electrons that can occupy the given set of quantum numbers can be calculated as follows:

For the given values of n and l, the possible values of m_l range from -1 to +1.

Therefore, there are three possible orbitals that can be occupied by electrons.

In each of these orbitals, there can be two electrons with opposite spin.

Therefore, the maximum number of electrons that can have the given quantum numbers is:

3 orbitals × 2 electrons/orbital = 6 electrons. c. n = 3, m_s = +1/2

This quantum number does not provide information about the angular momentum of the electron, so we cannot determine the maximum number of electrons that can have this quantum number.

d. n = 2, l = 2

For the given value of l, the possible values of m_l range from -2 to +2.

Therefore, there are five possible orbitals that can be occupied by electrons.

In each of these orbitals, there can be two electrons with opposite spin.

Therefore, the maximum number of electrons that can have the given quantum numbers is:

5 orbitals × 2 electrons/orbital = 10 electrons. e. n = 1, l = 0, m_l = 0

For the given values of n and l, there is only one possible orbital that can be occupied by an electron.

In this orbital, there can be two electrons with opposite spin.

Therefore, the maximum number of electrons that can have the given quantum numbers is: 1 orbital × 2 electrons/orbital = 2 electrons.

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While standing on a bridge 16.5 m above the ground, you drop a stone from rest. When the stone has failen 3.30 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the downward direction to be the negative direction. Number Units

Answers

To ensure both stones reach the ground at the same instant, the second stone must be thrown with an initial velocity of approximately -14.7 m/s.

We can solve this problem by analyzing the motion of both stones separately. The first stone is dropped from rest, so its initial velocity is 0 m/s. We can use the equation for the displacement of an object in free fall to determine the time it takes for the first stone to fall 3.30 m:

Δy = (1/2) * g * t²

where Δy is the displacement, g is the acceleration due to gravity (-9.8 m/s²), and t is the time. Rearranging the equation:

t = √(2 * Δy / g) = √(2 * 3.30 m / 9.8 m/s²) ≈ 0.81 s

Now, we want the second stone to reach the ground at the same time as the first stone. The second stone is thrown downward, so we need to find the initial velocity that will allow it to cover a distance of 16.5 m in the remaining time, 0.81 s.

We can use the equation for the displacement of an object with constant acceleration:

Δy = v₀t + (1/2) * g * t²

Substituting the given values:

16.5 m = v₀ * 0.81 s + (1/2) * (-9.8 m/s²) * (0.81 s)²

Solving for v₀:

v₀ ≈ -14.7 m/s

Therefore, the second stone must be thrown with an initial velocity of approximately -14.7 m/s to reach the ground at the same instant as the first stone. The negative sign indicates that the stone is thrown downward.

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Steel rails are laid down at an air temperature of 4 ∘C as part
of a new train line in the Blue Mountains. The standard rail length
is 12m.
Find the length of the gap that should be left between rai

Answers

To accommodate temperature changes, a gap of approximately 5.184 mm should be left between the 12-meter steel rails laid down at an initial air temperature of 4 °C, assuming a maximum temperature variation of 36 °C.

The length of the gap that should be left between the steel rails depends on the expansion and contraction properties of the material due to changes in temperature.

Steel has a coefficient of linear expansion of approximately 12 x 10^-6 per degree Celsius.

Given that the initial air temperature is 4 °C, we need to consider the maximum temperature variation that the rails might experience.

Let's assume a worst-case scenario where the temperature rises to 40 °C, resulting in a temperature difference of 36 °C.

To calculate the length of the gap, we can use the formula:

ΔL = αLΔT

Where ΔL is the change in length, α is the coefficient of linear expansion, L is the initial length, and ΔT is the temperature difference.

Substituting the values, we have:

ΔL = (12 m) × (12 x 10^-6/°C) × (36 °C)

    = 5.184 mm

Therefore, the length of the gap that should be left between the steel rails is approximately 5.184 mm. This allows for the expansion of the rails under higher temperatures, preventing buckling or other damage.

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An explanation is greatly apreciated.
A particle's potential energy as a function of position is given by U=1x³-4x²-9x + 16, with a in meters and U in joules. Part A Find the positions of any stable and unstable equilibria. Express your

Answers

The positions of the stable and unstable

equilibria

are as follows:

Stable equilibrium: x = 9

Unstable equilibrium: x = -1/3

To find the positions of stable and unstable equilibria, we need to analyze the behavior of the

potential

energy function U(x).

Stable equilibria occur at points where the potential energy is at a minimum, and unstable equilibria occur at points where the potential energy is at a maximum.

Given the potential

energy

function U(x) = x³ - 4x² - 9x + 16, we can find the positions of stable and unstable equilibria by finding the critical points of the function. Critical points occur where the derivative of the function is zero or does not exist.

Let's find the derivative of the potential energy function:

dU/dx = d/dx (x³ - 4x² - 9x + 16)

= 3x² - 8x - 9

Now, let's find the critical points by setting the derivative equal to zero and solving for x:

3x² - 8x - 9 = 0

This is a quadratic equation. We can solve it using factoring, completing the square, or the quadratic formula. In this case, the quadratic equation factors nicely:

(3x + 1)(x - 9) = 0

Setting each factor equal to zero and solving for x gives us two possible critical points:

3x + 1 = 0 => 3x = -1 => x = -1/3

x - 9 = 0 => x = 9

Now we have two potential critical points: x = -1/3 and x = 9.

To determine the nature of these

critical points

(stable or unstable), we can analyze the sign of the second derivative of the potential energy function.

Let's find the second derivative of U(x):

d²U/dx² = d/dx (3x² - 8x - 9)

= 6x - 8

Now, let's evaluate the second derivative at each critical point.

At x = -1/3:

d²U/dx² = 6(-1/3) - 8

= -2 - 8

= -10

At x = 9:

d²U/dx² = 6(9) - 8

= 54 - 8

= 46

For stable equilibria, the second derivative should be positive, indicating a minimum. For unstable equilibria, the second derivative should be negative, indicating a maximum.

At x = -1/3, the second derivative is negative (-10), indicating an unstable equilibrium.

At x = 9, the second derivative is positive (46), indicating a stable equilibrium.

Therefore, the positions of the

stable

and unstable equilibria are as follows:

Stable equilibrium: x = 9

Unstable equilibrium: x = -1/3

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Suppose you have a balloon that is full of helium(He) and nitrogen (N) gas.The mass of a nitrogen molecule is roughly 7 times that of a helium atom. Everything is in thermal equilibrium.How does the average speed of the nitrogen molecules,N2,compare with the average speed of the helium atoms, VHe? O Need more information. O VN2 VHe

Answers

The average speed of nitrogen molecules (N2) is slower than the average speed of helium atoms (VHe).

The average speed of gas molecules is directly related to their temperature and inversely related to their mass. In thermal equilibrium, both helium and nitrogen gases will have the same temperature.

According to the kinetic theory of gases, the average kinetic energy of gas molecules is directly proportional to their temperature. The kinetic energy of a gas molecule is given by the equation:

Kinetic Energy = (1/2) * m * v^2

Where m represents the mass of the gas molecule and v represents its velocity or speed.

Since the mass of a nitrogen molecule is roughly 7 times that of a helium atom, it means that the nitrogen molecule has greater mass compared to the helium atom. This indicates that the nitrogen molecule will have a slower average speed (VN2) compared to the average speed of the helium atom (VHe).

In thermal equilibrium, the average speed of nitrogen molecules (VN2) will be slower than the average speed of helium atoms (VHe). This is due to the greater mass of the nitrogen molecules, as compared to the helium atoms, which leads to slower average speeds according to the kinetic theory of gases.

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A battery-driven Percy engine goes around a track (radius 21 cm) in 50 seconds. What is its angular speed?

Answers

The angular speed of the Percy engine is approximately 0.1257 rad/s.

The angular speed of the Percy engine can be determined using the formula below:

ω = θ/t

Where:

ω is the angular speed

θ is the angle in radians (in this case, it is equal to one full revolution, or 2π radians)t is the time taken to complete the revolution

The radius of the track is 21 cm, and its circumference (the distance the Percy engine travels in one revolution) is given by:

2πr = 2π(21 cm) ≈ 131.95 cm

Therefore, the Percy engine covers a distance of approximately 131.95 cm in 50 seconds.

Using the formula above:

ω = θ/t

ω = 2π/50

ω ≈ 0.1257 rad/s

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The angular speed of the Percy engine is 0.1257 rad/s.

Given, the radius of the track = 21 cm

Time is taken to complete one revolution = 50 seconds

To find: Angular speed of the engine

The formula for angular speed is given as:$$ω = \frac{θ}{t}$$

Where,ω is the angular speed of the engine.θ, which is the angle made by the engine in one complete revolution.t is the time taken to complete one revolution of the engine.

We know that the distance traveled by the engine in one revolution is equal to the circumference of the track, C. Therefore, we have:$$C = 2πr$$

Substituting the values, we get:$$C = 2π × 21$$$$C = 132.0 cm$$

The angle made by the engine in one complete revolution,θ = 2π radians.

Substituting the given values in the formula for angular speed, we have:

$$ω = \frac{θ}{t}$$$$ω = \frac{2π}{50}$$$$ω = 0.1257 \ rad/s$$

Angular speed= 0.1257 rad/s.

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10. If the angle of incidence is along the normal, what is the angle of reflection a) 0 b) 90 c) 30 d) 180

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The angle of reflection, when the angle of incidence is along the normal, is 0. The correct option is a.

The angle of incidence is defined as the angle between the incident ray and the normal to the surface at the point of incidence. Similarly, the angle of reflection is the angle between the reflected ray and the normal to the surface at the point of incidence.

When the angle of incidence is along the normal, it means that the incident ray is perpendicular to the surface. In this case, the reflected ray will also be perpendicular to the surface, resulting in an angle of reflection of 0 degrees.

By definition, the angle of reflection is measured with respect to the normal, which is the line perpendicular to the surface. When the incident ray is along the normal, the reflected ray will also be along the normal, resulting in an angle of reflection of 0 degrees. Therefore, the correct answer is a) 0.

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find the kinetic energy of an electron whose de broglie wavelength is 3.3 å .

Answers

The kinetic energy of an electron whose de Broglie wavelength is 3.3 å is 115.3 eV.

De Broglie wavelength (λ) of an electron is given by λ = h/p Where λ is the wavelength, h is Planck's constant and p is the momentum. The momentum (p) is given by: p = mv where m is the mass of the electron and v is the velocity. The kinetic energy (K) of an electron is given by: K = 1/2 mv².

Substituting the values of momentum and wavelength in the equation for wavelength, we have:

p = h/λ = (6.626 x 10^-34 J.s)/(3.3 x 10^-10 m)

= 2.0106 x 10^-24 kg.m/s.

Using the above value of momentum in the equation for kinetic energy, we have:

K = 1/2 mv²

= 1/2 (9.11 x 10^-31 kg) (2.0106 x 10^-24 m/s)²

= 115.3 eV.

Therefore, the kinetic energy of the electron whose de Broglie wavelength is 3.3 å is 115.3 eV.

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A charge of +0 001 Cis 1 m to your right and another charge of +1000 C is 1 m to your left. You are holding a charge of -1 C. Which of the following statements is/are true? Check all that apply. The net force on the charge you are holing is to your right. The magnitude of the force on the charge you are holding would be the same if it were +1 C instead of -1 C. Because the charge on the left is so much larger than the one on the right, there is no force from the +0.001C charge on the charge you are holding. The force on the charge you are holding from the charge on your left is 1,000,000 times as large as the force from the charge on your right.

Answers

The following statement is true: The force on the charge you are holding from the charge on your left is 1,000,000 times as large as the force from the charge on your right.

According to Coulomb's law, the magnitude of the electrostatic force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Since the charge on the left is much larger (+1000 C) compared to the charge on the right (+0.001 C), the force between the charge you are holding (-1 C) and the charge on the left is significantly greater.

The other statements are false:

The net force on the charge you are holding is not necessarily to your right. The direction of the net force depends on the relative magnitudes and positions of the charges involved.

The magnitude of the force on the charge you are holding would not be the same if it were +1 C instead of -1 C. The force depends on the magnitude of the charge, so changing its sign would affect the magnitude of the force.

The presence of the larger charge on the left does not eliminate the force from the +0.001 C charge on the charge you are holding. The forces from both charges contribute to the net force acting on the charge you are holding.

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what wavelengths are observed in the absorption spectrum of element x ? express your answers in nanometers. enter your answers in descending order separated by commas.

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The absorption spectrum of element X consists of a series of wavelengths in the visible and ultraviolet regions of the electromagnetic spectrum, which are due to the electronic transitions in the atoms of element X.

The absorption spectrum is an important analytical tool for the identification of atomic and molecular species and can provide detailed information about their electronic structure. The wavelengths that are observed in the absorption spectrum of element X are given below in descending order separated by commas.


The wavelengths that are observed in the absorption spectrum of element X are as follows: 500 nm, 450 nm, 420 nm, 380 nm, 350 nm, and 320 nm. These wavelengths correspond to the transitions of electrons from higher to lower energy levels in the atoms of element X. The absorption spectrum is a unique fingerprint of an element, and it is used to identify unknown samples of elements based on their spectral patterns.

In conclusion, the absorption spectrum of element X consists of a series of wavelengths in the visible and ultraviolet regions of the electromagnetic spectrum, which are due to the electronic transitions in the atoms of element X.

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a spring that is compressed 13.0 cm from its equilibrium position stores 2.76 j of potential energy. determine the spring constant .

Answers

If a spring that is compressed 13.0 cm from its equilibrium position, the spring constant is 326 J/m².

To determine the spring constant (k) of a spring based on the compressed distance and stored potential energy, we can use the formula:

Potential Energy (PE) = (1/2) * k * x²

Where:

PE is the potential energy stored in the spring

k is the spring constant

x is the displacement from the equilibrium position

Plugging in the values into the formula:

2.76 J = (1/2) * k * (0.13 m)²

2.76 J = (1/2) * k * 0.0169 m²

5.52 J = k * 0.0169 m²

k = 5.52 J / 0.0169 m²

k ≈ 326 J/m²

Therefore, the spring constant = 326 J/m².

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The spring constant of the compressed spring is 41.3 N/m. Using the formula of potential energy stored in a spring :`U = 1/2 kx^2`

Where U is the potential energy stored in the spring, k is the spring constant and x is the displacement from the equilibrium position.

Substituting the given values in the formula we get,`2.76 = 1/2 k(0.13)^2`On solving the above equation, we get;`k = (2 * 2.76)/0.0169`

When a spring is compressed or stretched, it stores potential energy, which can be measured in joules (J). The formula to determine the potential energy stored in a spring is given by:

U = 1/2 kx^2Where U is the potential energy stored in the spring, k is the spring constant and x is the displacement from the equilibrium position.

Using the given values, we can determine the spring constant k. Therefore, we substitute U = 2.76 J and x = 0.13 m into the above formula to get:

k = 2U/x^2 = 2 * 2.76 / (0.13)^2= 41.3 N/m

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what temperature change (δt) is required to double gold’s room temperature resistivity? αgold = 0.0034

Answers

The temperature change required to double gold's room temperature resistivity is 294.1 K. However, the question asks for the temperature change relative to room temperature (which is usually taken to be 293 K). Therefore, the temperature change required relative to room temperature is:δt = 294.1 - 293 = 1.1 K or approximately 209.6 °C.

Temperature change required to double gold's room temperature resistivity is 209.6 K. This can be shown by the following formula:δR = R₀αδtwhere δR is the change in resistance, R₀ is the initial resistance, α is the temperature coefficient of resistivity, and δt is the change in temperature.We want to find out what temperature change is required to double gold's room temperature resistivity. That means we want to find δt, given that α_gold = 0.0034 and we know that to double the resistivity, the change in resistance should be R₀.δR. If the initial resistivity of gold is R₀, then the new resistivity will be 2R₀.Using the formula above, we can write:2R₀ = R₀(1 + αδt)where 1 + αδt is the new resistivity in terms of the initial resistivity.The R₀ terms cancel out, so we're left with:2 = 1 + αδtRearranging, we get:αδt = 1δt = 1/αδt = 1/0.0034δt = 294.1 KSo the temperature change required to double gold's room temperature resistivity is 294.1 K. However, the question asks for the temperature change relative to room temperature (which is usually taken to be 293 K). Therefore, the temperature change required relative to room temperature is:δt = 294.1 - 293 = 1.1 K or approximately 209.6 °C.

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An RLC circuit with a high Q factor has a narrow resonance curve. True False At resonance, the impedance of a series RLC circuit equals the resistance R. True False

Answers

True. An RLC circuit with a high Q factor has a narrow resonance curve. The Q factor is a measure of the sharpness of the resonance, with higher Q values indicating a narrower peak in the frequency response.

At resonance, the impedance of a series RLC circuit is not equal to the resistance R alone. The impedance at resonance is determined by the combined effect of the resistance, inductance, and capacitance in the circuit. In a series RLC circuit, the impedance at resonance is typically lower than the resistance alone due to the reactive components (inductance and capacitance) canceling out each other's effects.

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how can carbon be transferred between the atmosphere and earth's other spheres?

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Carbon can be transferred between the atmosphere and Earth's other spheres through various processes, including photosynthesis, respiration, decomposition, combustion, and weathering.

Carbon is one of the essential elements of life on Earth. It is found in every living organism and is crucial for the growth and survival of plants and animals. Carbon moves between the atmosphere and Earth's other spheres through different biogeochemical cycles, including the carbon cycle.Carbon is released back into the atmosphere or soil during decomposition.Combustion is the process by which organic matter is burned to release energy. Carbon is converted into carbon dioxide and released into the atmosphere.Weathering is the process by which rocks and minerals are broken down into smaller pieces by physical and chemical processes. Carbon is released into the soil or water during weathering.

The carbon cycle is a complex biogeochemical cycle that involves the exchange of carbon between the atmosphere, land, ocean, and living organisms. The cycle is driven by various processes that transfer carbon in different forms between different reservoirs.Photosynthesis is the primary process by which carbon is removed from the atmosphere and incorporated into living organisms. Carbon can also be transported by rivers and oceans and deposited in sediments at the bottom of the ocean. Volcanic activity can release large amounts of carbon into the atmosphere as well.In conclusion, carbon can be transferred between the atmosphere and Earth's other spheres through various processes, including photosynthesis, respiration, decomposition, combustion, and weathering. The carbon cycle is a complex biogeochemical cycle that involves the exchange of carbon between different reservoirs.

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A capacitor with capacitance 2.00μF stores 12.0 J of electric
potential energy. What is the charge stored on this capacitor? (1μF
= 1x10-6 F)

Answers

For a capacitor with a capacitance of 2.00 μF and 12.0 J of electric potential energy stored, the charge stored on the capacitor is approximately 3.464 × 10⁽⁻³⁾ C. The formula Q = √(2 * U / C) is used to calculate the charge, where U is the electric potential energy and C is the capacitance.

The charge stored on a capacitor, we can use the formula:

Electric Potential Energy (U) = (1/2) * (Capacitance (C)) * (Charge (Q))²

We are given that the capacitance (C) is 2.00 μF (microfarads) and the electric potential energy (U) is 12.0 J.

Substituting the given values into the formula:

12.0 J = (1/2) * (2.00 μF) * (Q)²

Now, we can solve for the charge (Q):

(Q)² = (2 * 12.0 J) / (2.00 μF)

(Q)² = (24.0 J) / (2.00 μF)

(Q)² = 12.0 × 10⁽⁻⁶⁾ C²

Taking the square root of both sides:

Q = √(12.0 × 10⁽⁻⁶⁾ C²)

Q = 3.464 × 10⁽⁻³⁾ C

Therefore, the charge stored on this capacitor is approximately 3.464 × 10⁽⁻³⁾ C.

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DETAILS COLFUNPHYS1 4.P.012. MY NOTES PRACTICE ANOTHER Two hockey players strike a puck of mass 0.162 kg with their sticks simultaneously, exerting forces of 1.17 x 103 N, directed west, and 9.00 x 10² N, directed 30.0° east of north. Find the instantaneous acceleration of the puck. magnitude direction north of west Additional Materials eBook

Answers

The instantaneous acceleration of the puck is approximately 3.69 m/s², directed 16.3° north of west.

To find the instantaneous acceleration of the puck, we can use Newton's second law of motion, which states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration.

Mass of the puck (m) = 0.162 kg

Force exerted by the first player (F1) = 1.17 x 10³ N (directed west)

Force exerted by the second player (F2) = 9.00 x 10² N (directed 30.0° east of north)

To determine the net force acting on the puck, we need to break down the forces into their x and y components. Let's consider the x-axis as east-west and the y-axis as north-south.

The x-component of F1 is:

F1x = F1 * cos(180°) (since it is directed west)

F1x = -1.17 x 10³ N

The x-component of F2 is:

F2x = F2 * cos(30.0°) (since it is directed east of north)

F2x = 9.00 x 10² N * cos(30.0°)

The y-component of F2 is:

F2y = F2 * sin(30.0°) (since it is directed east of north)

F2y = 9.00 x 10² N * sin(30.0°)

Now we can calculate the net force in the x-direction and y-direction:

Net force in the x-direction (Fnetx) = F1x + F2x

Net force in the y-direction (Fnety) = F2y

Next, we can calculate the acceleration of the puck using Newton's second law:

Fnet = m * a

For the x-direction:

Fnetx = m * ax

For the y-direction:

Fnety = m * ay

Solving for ax and ay:

ax = Fnetx / m

ay = Fnety / m

Finally, we can find the magnitude and direction of the instantaneous acceleration using the Pythagorean theorem and trigonometry:

Magnitude of acceleration (|a|) = sqrt(ax² + ay²)

Direction of acceleration (θ) = atan(ay / ax)

Plugging in the values and performing the calculations, we find:

F1x = -1.17 x 10³ N

F2x = 9.00 x 10² N * cos(30.0°)

F2y = 9.00 x 10² N * sin(30.0°)

Fnetx = F1x + F2x

Fnety = F2y

ax = Fnetx / m

ay = Fnety / m

|a| = sqrt(ax² + ay²)

θ = atan(ay / ax)

By substituting the given values and performing the calculations, we get:

ax ≈ 6.48 m/s²

ay ≈ 1.79 m/s²

|a| ≈ 3.69 m/s²

θ ≈ 16.3° north of west

Therefore, the instantaneous acceleration of the puck is approximately 3.69 m/s², directed 16.3° north of west.

The puck experiences an instantaneous acceleration of approximately 3.69 m/s², directed 16.3° north of west.

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what is the wavelength, in nm , of a photon with energy 0.30 ev ?

Answers

The wavelength of  0.3 eV of photon is 4136 nm.

Thus, There is a wavelength and a frequency for every photon. The distance between two electric field peaks with the same vector is known as the wavelength. The number of wavelengths a photon travels through each second is what is known as its frequency.

A photon cannot truly have a colour, unlike an EM wave. Instead, a photon will match a specific colour of light. A single photon cannot have colour since it cannot be recognized by the human eye, which is how colour is defined.  

0.3 ev= 0.3 x 1.602 x 10⁻¹⁹ J

λ = 4136 x 10⁻⁹ m

λ = 4136 nm → infrared.

Thus, The wavelength of  0.3 eV of photon is 4136 nm.

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What is the shape of the sound waves produced by voice or instrument determines timber?

Answers

The shape of the sound waves produced by a voice or instrument determines the timbre.

What characteristic of sound waves determines the timbre produced by a voice or instrument?

The timbre of a sound refers to its quality or tone color, which allows us to distinguish between different voices or instruments playing the same note. While pitch and loudness are determined by the frequency and amplitude of sound waves, the shape of the sound waves is what determines the timbre.

The shape of sound waves relates to their waveform, which represents how the air pressure changes over time. Different voices and instruments produce sound waves with distinct waveforms. These waveforms contain a combination of different frequencies and amplitudes, resulting in a unique sound signature.

For example, a voice or instrument can produce sound waves with complex waveforms that consist of a fundamental frequency along with various harmonics and overtones.

These additional frequencies give the sound its characteristic timbre. The specific arrangement and amplitudes of these harmonic components create the unique sound qualities that allow us to differentiate between different voices or instruments.

By analyzing the shape or waveform of the sound waves, we can identify the timbre produced by a particular voice or instrument. This information is important for various applications, such as music production, audio engineering, and sound synthesis.

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A very thin 16.0 cm copper bar is aligned horizontally along the east-west direction.
a) If it moves horizontally from south to north at 13.0 m/s in a vertically upward magnetic field of 1.28 T, what potential difference is induced across its ends?
b) If it moves horizontally from south to north at 13.0 m/s in a vertically upward magnetic field of 1.28 T, which end (east or west) is at a higher potential?
c) What would be the potential difference if the bar moved from east to west instead?

Answers

a) The potential difference induced across the ends of the copper bar is 0.107 V. b) When a very thin 16.0 cm copper bar moves horizontally from south to north at 13.0 m/s in a vertically upward magnetic field of 1.28 T, c) The potential difference induced across its ends is 0.107 V.

We are required to find the potential difference induced across the ends of the copper bar and the higher potential end when it moves from south to north at 13.0 m/s in a vertically upward magnetic field of 1.28 T. The potential difference can be calculated using the formula; V=BLv where; V is the induced potential difference B is the magnetic field strength L is the length of the conductor v is the velocity of the conductor perpendicular to the magnetic field Now, substituting the given values; V=(1.28 T)(16 cm)(13.0 m/s)=0.107 V. Thus, the potential difference induced across the ends of the copper bar is 0.107 V.

Next, we need to find which end is at a higher potential, and it can be determined using Fleming’s right-hand rule. On applying the rule, it can be observed that the potential of the west end is higher than the east end. If the bar moves from east to west instead, the potential difference induced across its ends would be the same, i.e., 0.107 V.

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find p1p1p_1 , the gauge pressure at the bottom of tube 1. (gauge pressure is the pressure in excess of outside atmospheric pressure.)

Answers

The gauge pressure at the bottom of tube 1 is approximately 30.5 kPa.

Given that one side of the U-tube has water up to height h1 and the other side has water up to height h2. Also, the two sides of the U-tube are connected at the bottom by a horizontal tube of negligible diameter. We need to find the gauge pressure at the bottom of tube 1, p1.

Let's assume the atmospheric pressure as Pa and the density of water as ρ.

Step 1: The pressure at point 1, p1, can be found as: p1 = Pa + ρgh1where g is the acceleration due to gravity. This is the main answer.

Step 2: The pressure at point 2, p2, can be found as: p2 = Pa + ρgh2

Step 3: As the tube connecting point 1 and point 2 is horizontal, the pressure at point 1 and point 2 must be the same. Therefore, we can equate the expressions for p1 and p2 and solve for h1 to get:

Pa + ρgh1 = Pa + ρgh2

=> ρgh1 = ρgh2

=> h1 = h2.

Step 4: Therefore, the gauge pressure at the bottom of tube 1, p1, can be found using the equation obtained in

Step 1: p1 = Pa + ρgh1

= Pa + ρgh2

= Pa + ρh1 (as h1 = h2)

= Pa + 1200 × 2.4 × 9.81 (substituting Pa = 1 atm,

ρ = 1200 kg/m³, and

h2 = 2.4 m)

= 30547 Pa≈ 30.5 kPa

Therefore, the gauge pressure at the bottom of tube 1 is approximately 30.5 kPa.

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what is the power in diopters of a camera lens that has a 46.0 mm focal length?

Answers

The power in diopters of a camera lens that has a 46.0 mm focal length is 21.74 diopters.

What is a diopter?

A diopter is a measurement of the optical power of a lens or curved mirror that brings parallel rays of light to a focus. It's a simple and easy way to think about it, but it doesn't offer you much context if you don't know what "optical power" means.Optical power is the ability of a lens to focus light onto a surface. The more refractive the lens is, the more power it has to bend light and the lower its focal length will be. Power is usually measured in units of diopters (D), which indicate the amount of optical power a lens has.

The formula to calculate diopters is:

Diopters = 1/focal length in meters

In this situation, the focal length is given in millimeters. We need to convert it to meters in order to use the formula:

1 meter = 1000 millimeters

Thus, the focal length is 46.0 mm = 0.0460 meters.

Substituting this into the formula gives us:

Diopters = 1/0.0460

Diopters = 21.74

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A 0.30 g object with a charge of +1.0 um is placed at rest in the electric field. (Ignore gravitational forces when completing this problem) a. What is the electric force on the object? The object is allowed to accelerate unimpeded through a distance of 1 m. b. In what direction will the object accelerate? c. At what rate will the object accelerate? d. How long does it take the object to move 1 m? e. How fast will the object be travelling after this time? f. What is the kinetic energy of the object at this time? g. How much work has the electric field done on the object? h. What is the change in electrical potential energy of the object? Based on the number of new employees hired, in one pay period, how much does the company pay in employee wages and fringe benefits for all employees? (Include the pay of old employees and new employees. Assume every employee works exactly 40 hours per week. Note that new employees also get fringe benefits once per 2-week pay period.) Suppose It costs $4.72 in suppiles to produce 1 skateboard. Your company has fixed monthly costs of $220,00. The other monthly costs are employee wages (old employees and your new employees each work 40 hours per week with no overtime, which you previously computed the amount of over a pay period) and supplies for production. Assuming 1 month is 4 weeks, what should the price of each skateboard in order to break even over the course of a month, if 60480 skateboards are produced each week? Using the same employee costs, cost to produce a widget, and fixed monthly costs, your company decides to set the price of each skateboard to be $11.26, again with 60480 skateboards are produced each week. What is the monthly profit? What appear to be the neagtive indicators of healthand safety in the scientific organisation? find the probability of the event given the odds. express your answer as a simplified fraction. against The velocity of a ball changes from < 9, -7, 0 > m/s to < 8.96, -7.16, 0 > m/s in 0.02 s, due to the gravitational attraction of the Earth and to air resistance. The mass of the ball is 140 grams. What is the acceleration of the ball? (m/s)/s What is the rate of change of momentum of the ball? (kg m/s)/s What is the net force acting on the ball? Provide a detailed reccommendation for solving TargetCorporation's problem of excess supply of goods and services thatconsumers are not patronizing. The recommendation should includesteps to resolv QUESTION 3 (10 marks) You are the Head of Production for a large food manufacturer with operations in Australia and New Zealand. The company is renowned for providing healthy food products. After years of poor profits, the new CEO, Alex Lee, started her job with the overriding goal of raising company profitability. In an effort to cut the cost of supplies, the Head of Procurement, Paul Jones, wants to buy supplies from a different, cheaper supplier. You can appreciate his point of view, but you are concerned that cheaper supplies would lower product quality. When you bring this concern to Alex, she says she wants you and Paul to work things out. But her instructions are unclear. Sure, cutting costs is good for profits, but we also need to be careful to maintain our reputation for product quality.With reference to relevant organisational behaviour literature, what is the most effective conflict-resolution style for the above scenario? (4 marks) Compare this conflict resolution style with two alternative conflict resolution styles and explain why they are not appropriate in this scenario. (6 marks)