the image of a distant tree is virtual and very small when viewed in a curved mirror. the image appears to be 18.0 cm behind the mirror. part a what kind of mirror is it?

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Answer 1

The image of a distant tree is virtual and very small when viewed in a curved mirror. the image appears to be 18.0 cm behind the mirror. kind of mirror is a concave mirror.

Based on the information provided, we can determine that the mirror in question is a concave mirror. This is because a concave mirror is curved inward and has a reflective surface that bulges inward, like the inside of a sphere.

Concave mirrors are known for their ability to converge light, meaning that they can bring parallel light rays together at a single point, known as the focal point.
In this case, we know that the image of the distant tree is virtual, meaning that it appears to be behind the mirror, rather than in front of it.

This is a characteristic of concave mirrors, as they can create virtual images when the object being reflected is located within the focal length of the mirror.

Additionally, we know that the image is very small, which is another indication that the mirror is concave.
Finally, we know that the image appears to be 18.0 cm behind the mirror.

This means that the image is located at the focal point of the mirror, which is a common location for virtual images to appear when using a concave mirror.

Overall, based on the information provided, we can confidently conclude that the mirror in question is a concave mirror.

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Related Questions

You have a one-dimensio- nal lattice that contains Na particles of type A and NB particles of type B. They completely fill the lattice, so the number of sites is NA+NB. (a) Express the entropy S(NA, NB) as a function of NA and NB. (b) Give the relationship between the chemical poten- tial ua and the quantity (OS/ONA) No (c) Express MA (NA, NB) as a function of NA and NB.

Answers

If the lattice is composed of NA moles of A and NB moles of B, the total mass of A in the lattice is: [tex]MA(NA, NB) = NA *[/tex] m_A where m_A is the molar mass of species A.

(a) The entropy S(NA, NB) can be expressed as [tex]S(NA, NB) = k ln (NA+NB)! - k ln (NA! NB!)[/tex]where k is the Boltzmann constant. This is because there are (NA+NB)! ways to arrange the particles in the lattice, but we need to account for the fact that we can't distinguish between particles of the same type.
(b) The chemical potential ua is related to the quantity [tex](OS/ONA) No by the equation ua = -kT ln [(OS/ONA) No / V],[/tex]where T is the temperature and V is the volume of the lattice. Here, OS is the number of ways to arrange the particles in the lattice such that they are all in their respective energy states, and ONA is the number of ways to arrange the A particles in their energy states. No is the number of particles in the system, which is equal to NA + NB.
(c) The magnetization MA(NA, NB) can be expressed as[tex]MA(NA, NB) = (NA - NB) / (NA + NB), which is a function of NA and NB.[/tex]This equation gives the average magnetization of the lattice, where positive values of MA indicate a majority of A particles and negative values indicate a majority of B particles.

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Part APositive charge Q is distributed uniformly along the positive y-axis between y=0 and y=a. A negative point charge −q lies on the positive x-axis, a distance x from the origin (the figure (Figure 1) ).
Part B
Calculate the y-component of the electric field produced by the charge distribution Q at points on the positive x-axis. Express your answer in terms of the variables Q, x, y, a and appropriate constants.
Ey =
Part C
Calculate the x-component of the force that the charge distribution Q exerts on q. Express your answer in terms of the variables Q, q, x, y, a and appropriate constants.
Fx =
Part D
Calculate the y-component of the force that the charge distribution Q exerts on q. Express your answer in terms of the variables Q, q, x, y, a and appropriate constants.
Fy =

Answers

Part B: Y component is  Ey = Q/(4πε₀) * (y/(y²+x²)³/2 - (y-a)/(y-a)²+x²)³/2), Part C: x component is  Fx = Q*q/(4πε₀) * (x/(x²+y²)³/2) and Part D: Fy = Q*q/(4πε₀) * (y/(x²+y²)³/2 - (y-a)/((x-a)²+y²)³/2)

Part B:

To compute the y-part of the electric field delivered by the charge conveyance Q at focuses on the positive x-pivot, we can involve Coulomb's regulation for the electric field because of a guide charge and the standard of superposition toward coordinate over the whole dispersion of charges. The outcome is:

Ey = Q/(4πε₀) * (y/(y²+x²)³/2 - (y-a)/(y-a)²+x²)³/2)

where ε₀ is the permittivity of free space.

Part C:

To work out the x-part of the power that the charge appropriation Q applies on q, we can involve Coulomb's regulation for the power between guide charges and the rule of superposition toward incorporate over the whole circulation of charges. The outcome is:

Fx = Q*q/(4πε₀) * (x/(x²+y²)³/2)

Part D:

To compute the y-part of the power that the charge circulation Q applies on q, we can again involve Coulomb's regulation for the power between direct charges and the standard of superposition toward incorporate over the whole dispersion of charges. The outcome is:

Fy = Q*q/(4πε₀) * (y/(x²+y²)³/2 - (y-a)/((x-a)²+y²)³/2)

These conditions include a touch of math, however they permit us to track down the electric field and power on the charge q because of the circulation of charges Q.

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Q(t) = CVe^-t/RC where V is the DC source voltage Question: Use equations 11.5 and 11.2 to derive a expression for the time-dependent voltage across a discharging capacitor. Question: Create a sketch of the discharging capacitor voltage with respect to time in the grid below. This may be done by hand. Scan and attach it to your pre-lab digital submission. Be sure to create axes and given them proper labels.

Answers

The given problem involves deriving an expression for the time-dependent voltage across a discharging capacitor using the equation Q(t) = CVe^-t/RC, where V is the DC source voltage. We are also asked to create a sketch of the discharging capacitor voltage with respect to time.

To derive the expression for the time-dependent voltage across a discharging capacitor, we need to use the equations for capacitance and charge on a capacitor, as well as Ohm's law. By rearranging these equations and substituting in the given equation for Q(t), we can derive an expression for the voltage across a discharging capacitor as a function of time

Overall, the problem involves applying the principles of electronics and circuits to derive an expression for the voltage across a discharging capacitor and to create a sketch of the discharging capacitor voltage with respect to time. It requires an understanding of capacitance, charge on a capacitor, Ohm's law, and how these concepts relate to the voltage and current in a circuit.

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The Schroedinger wave equation relates the energy of an atom to its electrons in terms of the _______ function of the electron. Each solution to the equation represents an allowed _______ state of the atom and is associated with a particular atomic orbital

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The Schroedinger wave equation relates the energy of an atom to its electrons in terms of the wave function of the electron. Each solution to the equation represents an allowed energy state of the atom and is associated with a particular atomic orbital


The Schrödinger wave equation relates the energy of an atom to its electrons in terms of the wave function of the electron. Each solution to the equation represents an allowed energy state of the atom and is associated with a particular atomic orbital.

The wave function contains information about the electron's position, energy, and probability density. By solving the Schrödinger equation, we can obtain these wave functions for different energy levels and orbitals. The allowed energy states, also known as eigenstates, correspond to quantized energy levels that the electrons can occupy.

Atomic orbitals, on the other hand, describe the three-dimensional regions where electrons are most likely to be found around the nucleus. These orbitals have unique shapes and orientations, and their characteristics are defined by the principal quantum number (n), the angular momentum quantum number (l), and the magnetic quantum number (m).

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A 24.0 Ω bulb is connected across the terminals of a 12.0-V battery having 3.00 Ω of internal resistance.
What percentage of the power of the battery is dissipated across the internal resistance and hence is not available to the bulb?

Answers

A 24.0 Ω bulb is connected across the terminals of a 12.0-V battery having 3.00 Ω of internal resistance. 16.7% of the power supplied by the 12.0-V battery is dissipated across the internal resistance and is not available to the 24.0 Ω bulb.

To find the percentage of power dissipated across the internal resistance, we'll first need to calculate the total power supplied by the battery and the power dissipated across the bulb. Here's a step-by-step explanation:

1. Calculate the total resistance in the circuit:
R_total = R_bulb + R_internal = 24.0 Ω + 3.00 Ω = 27.0 Ω

2. Calculate the current (I) flowing in the circuit using Ohm's law:
I = V / R_total = 12.0 V / 27.0 Ω ≈ 0.444 A

3. Calculate the power (P_total) supplied by the battery:
P_total = V × I = 12.0 V × 0.444 A ≈ 5.33 W

4. Calculate the power (P_bulb) dissipated across the 24.0 Ω bulb:
P_bulb = I² × R_bulb = (0.444 A)² × 24.0 Ω ≈ 4.44 W

5. Calculate the power (P_internal) dissipated across the internal resistance:
P_internal = I² × R_internal = (0.444 A)² × 3.00 Ω ≈ 0.89 W

6. Calculate the percentage of power dissipated across the internal resistance:
Percentage = (P_internal / P_total) × 100% = (0.89 W / 5.33 W) × 100% ≈ 16.7%

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A 4.8 kg ball hangs from a steel wire 2.00 mm in diameter and 2.00 m long, Part A What would be the speed of a wave in the steel wire? Express your answer using two significant figures.

Answers

To find the speed of a wave in the steel wire, we can use the following formula: speed = √(T/μ) where T is the tension in the wire and μ is the linear mass density of the wire.


First, we need to find the tension (T) in the wire. The tension is equal to the weight of the ball:
T = m * g
[tex]T = 4.8 kg * 9.81 m/s²[/tex]
T ≈ 47.1 N
Next, we need to find the linear mass density (μ) of the wire. We can calculate the volume of the wire using the formula for the volume of a cylinder:
[tex]V = π * (diameter/2)² * length[/tex]
[tex]V ≈ π * (0.002 m/2)² * 2 m[/tex]
[tex]V ≈ 6.2832 x 10⁻⁶ m³[/tex]
To find the mass of the wire, we need the density of steel, which is approximately 7850 kg/m³:
mass = density * volume
mass ≈ [tex]7850 kg/m³ * 6.2832 x 10⁻⁶ m³[/tex]
mass ≈ 0.0493 kg
Now we can find the linear mass density (μ) by dividing the mass by the length of the wire:
μ = mass/length
μ ≈ [tex]0.0493 kg / 2 m[/tex]
μ ≈ 0.0246 kg/m
Finally, we can calculate the speed of the wave in the wire:
speed = √(T/μ)
speed = [tex]√(47.1 N / 0.0246 kg/m)[/tex]
speed ≈ 44 m/s
The speed of a wave in the steel wire is approximately 44 m/s, expressed with two significant figures.

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what is the magnitude of the total electric force that charges q1q1 and q2q2 exert on charge qq ?

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The magnitude of the total electric force that charges q1q1 and q2q2 exert on charge qq is given by Coulomb's law, which states that the force is proportional to the product of the charges (q1q1 and q2q2) and inversely proportional to the square of the distance between them. Mathematically, it can be expressed as F = k(q1q2)/r^2.

The magnitude of the total electric force that charges q1 and q2 exert on charge q can be calculated using Coulomb's Law.
Coulomb's Law states that the force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, the formula is:
[tex]F = k * (|q1 * q| / r1^2) + k * (|q2 * q| / r2^2)[/tex]
Where F is the total electric force, k is Coulomb's constant (approximately 8.99 * 10^9 Nm^2/C^2), q1 and q2 are the charges exerting force, q is the charge experiencing the force, and r1 and r2 are the distances between the charges.
To find the magnitude of the total electric force, you simply need to plug in the given values for q1, q2, q, r1, and r2, and calculate the sum of the forces.

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a car is traveling at 50 mi/h when the brakes are fully applied, producing a constant deceleration of 38 ft/s2. what is the distance (in ft) traveled before the car comes to a stop? (round your answer to one decimal place.)

Answers

Car will travel 76.7 feet before it comes to a stop.

First, we need to convert the initial velocity of the car to feet per second:

[tex]50 miles/hour = 73.3 feet/second (1 mile = 5280 feet, 1 hour = 3600 seconds)[/tex]

Now we can use the following kinematic equation to solve for the distance traveled by the car before it comes to a stop: [tex]v^2 = u^2 + 2as[/tex]

where v is the final velocity (0 ft/s), u is the initial velocity (73.3 ft/s), a is the constant deceleration (-38 ft/s^2), and s is the distance traveled.

Substituting the known values, we get:

[tex]0^2 = (73.3)^2 + 2(-38)s[/tex]

Solving for s, we get:

[tex]s = 76.7 feet[/tex]

Therefore, the car will travel 76.7 feet before it comes to a stop.

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a block is on a frictionless horizontal table, on earth. this block accelerates at 2.7 m/s2 when a 90 n horizontal force is applied to it. the block and table are then set up on the moon where the acceleration due to gravity is 1.62 m/s2. what is the weight of the block on the moon?

Answers

The weight of the block on the moon is approximately 53.83 newtons.

We can use Newton's second law of motion, which states that the net force acting on an object is equal to its mass times its acceleration, to solve this problem. Since the block is on a frictionless horizontal table, there are no other forces acting on it except the horizontal force being applied.

On Earth, the force applied is 90 N and the acceleration of the block is 2.7 m/s². Therefore, the mass of the block can be calculated as,

mass = force / acceleration = 90 N / 2.7 m/s² = 33.33 kg

On the moon, the acceleration due to gravity is 1.62 m/s², which means that the weight of the block on the moon is,

weight = mass x acceleration due to gravity = 33.33 kg x 1.62 m/s² = 53.83 N

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Question 13.11:
What is the steepest downhill slope between the two points and where is this located?
Question 13.12:
For this section of the terrain, what is the maximum uphill and downhill slope? What is the average uphill and downhill slope?

Answers

Main answer:

We have to find the steepest downhill slope between the two points and the maximum uphill and downhill slope and the average uphill and downhill slope for this section of the terrain.

Step-by-step explanation:Question 13.11:

To find the steepest downhill slope between the two points, you need to follow these steps:
1. Identify the two points on the terrain.
2. Calculate the elevation difference between the two points.
3. Calculate the horizontal distance between the two points.
4. Divide the elevation difference by the horizontal distance to find the slope.
5. The steepest downhill slope is the highest value among all the calculated slopes.
6. Identify the location of the steepest downhill slope on the terrain.


Question 13.12:

To find the maximum uphill and downhill slope and the average uphill and downhill slope for this section of the terrain, follow these steps:
1. Identify the section of the terrain you are analyzing.
2. Calculate the slopes between each adjacent point in the section.
3. Identify the maximum uphill slope (highest positive value) and the maximum downhill slope (highest negative value).
4. To find the average uphill and downhill slopes, add up all the uphill slopes and divide by the number of uphill slopes, and add up all the downhill slopes and divide by the number of downhill slopes.

Please provide the specific terrain data or points to help you calculate the slopes and identify their locations.

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A 3.00 μF and a 4.00 μF capacitor are connected in series, and this combination is connected in parallel with a 2.00 μF capacitor. What is the net capacitance?

Answers

The net capacitance of the combination of capacitors is 3.44 μF.

We can use the formula for the total capacitance of capacitors connected in series and parallel to find the net capacitance of this combination.

When capacitors are connected in series, their total capacitance is given by: 1/C_series = 1/C_1 + 1/C_2 + 1/C_3 + ...

For the 3.00 μF and 4.00 μF capacitors connected in series, their equivalent capacitance is:

1/C_series = 1/3.00 μF + 1/4.00 μF

= 0.4444 + 0.25

= 0.6944 μF

Taking the reciprocal of both sides, we find the equivalent capacitance:

C_series = 1/0.6944 μF

≈ 1.44 μF

This equivalent capacitance is then connected in parallel with the 2.00 μF capacitor, and the total capacitance of the combination is given by:

C_total = C_series + C_parallel

= 1.44 μF + 2.00 μF

= 3.44 μF

Therefore, the net capacitance of the combination of capacitors is 3.44 μF.

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The proximal tubule and loop of Henle are subject to hormonal regulation of sodium and water. T/F

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True. The proximal tubule and loop of Henle are both involved in the reabsorption of sodium and water, and this process is regulated by hormones such as aldosterone and antidiuretic hormone (ADH).

The proximal tubule and loop of Henle are subject to hormonal regulation of sodium and water. Hormones such as aldosterone, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP) play a significant role in regulating sodium and water reabsorption in these nephron segments to maintain proper fluid balance in the body.

It can be a little easier to understand this reaction when you think of sodium compared to a noble gas; it is similar to neon, which has ten protons and ten electrons. Noble gases are known for their stability due to their full atomic orbitals, and not needing to gain or lose electrons.

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What is the current flowing through a 120 volt toaster that has a resistance of 24 ohms?

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The current flowing through the toaster is 5 amps, calculated using Ohm's law with a voltage of 120 V and resistance of 24 ohms.

To decide the ongoing coursing through the toaster oven, we can utilize Ohm's regulation, which expresses that the ongoing through a guide between two focuses is straightforwardly corresponding to the voltage across the two focuses and conversely relative to the opposition between them.

Numerically, this can be communicated as I = V/R, where I is the ongoing in amps, V is the voltage in volts, and R is the opposition in ohms.Connecting the qualities given in the inquiry, we get:

I = V/R = 120 V/24 ohms = 5 amps

Consequently, the ongoing coursing through the toaster oven is 5 amps. This implies that the toaster oven is consuming electrical power at a pace of 600 watts (P = IV), which is the result of the flow and voltage across it.

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a heavy fireworks petard explodes with high energy at the peak of its parabolic trajectory. what will the trajectory of its center of mass be after the explosion? neglect air resistance.

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The trajectory of the center of mass of the heavy fireworks petard will continue along the original parabolic path after the explosion. This is because the center of mass follows a path that is independent of the internal forces acting within the object.

When the petard explodes, the internal forces acting within the object will cause it to break apart into many smaller pieces. However, the center of mass will continue along the original path of the object, following a parabolic trajectory. This is because the motion of the center of mass is only influenced by external forces acting on the object, such as gravity.

Therefore, neglecting air resistance, the trajectory of the center of mass of the petard after the explosion will be the same as its trajectory before the explosion.

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A steel bar with square cross sections 5 cm by 5 cm and length 2 meters is being heated. For each dimension, the bar expands 13×10−6 meters for each 1∘ rise in temperature. 1 What is the rate of change in the volume of the steel bar? NOTE: Round your answer to two decimal places. Do not include the 10−6 factor in your answer. dTdV​=×10−6 m3/∘C⋅X

Answers

The rate of change in the volume of the steel bar is approximately 2.00 m³/°C.

The change in volume of the steel bar can be calculated as;

ΔV = V₀βΔT

where V₀ will be the initial volume of the bar, β will be the coefficient of volume expansion, and ΔT is the change in temperature.

Since the bar has a square cross section of 5 cm by 5 cm, its initial volume is;

V₀ = (5 cm)² × 200 cm ≈ 50000 cm² = 0.05 m³

The coefficient of volume expansion for steel is typically around 3 times the coefficient of linear expansion, which is given as 13 × 10⁻⁶ m/m/°C. So, the coefficient of volume expansion for steel is β = 3(13 × 10⁻⁶ m/m/°C) = 39 × 10⁻⁶ m³/m³/°C.

Therefore, the rate of change in the volume of the steel bar is;

dV/dT = βV₀ = (39 × 10⁻⁶ m³/m³/°C)(0.05 m³) ≈ 0.002 m³/°C

Rounding this to two decimal places and excluding the 10⁻⁶ factor, we get;

dV/dT ≈ 2.00

So the rate of change in the volume of the steel bar is approximately 2.00 m³/°C.

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flame emission determination of [k ] in the 0.50 m kcl khp

Answers

The concentration of [K+] in the 0.50 M KCl solution can be determined using flame emission spectroscopy with a series of standard solutions of known concentration and a calibration curve relating the intensity of the emission spectra to the concentration of K+

Determination of flame emission of [K+] in a 0.50 M KCl KHP solution.
1. Prepare the 0.50 M KCl KHP solution: Dissolve an appropriate amount of KCl and KHP (potassium hydrogen phthalate) in distilled water to make a 0.50 M solution. The solution should contain potassium ions (K+) from both KCl and KHP.

2. Calibrate the flame emission spectrometer: To ensure accurate measurements, calibrate the spectrometer using a series of standard solutions with known concentrations of potassium ions (K+). Record the emission intensities for each standard solution.

3. Measure the content-loaded flame emission: Now that the spectrometer is calibrated, aspirate the 0.50 M KCl KHP solution into the flame. The potassium ions in the solution will be excited, and as they return to their ground state, they will emit light. The spectrometer will measure the intensity of this emitted light.

4. Determine the concentration of potassium ions (K+): Using the calibration curve obtained in step 2, find the corresponding concentration of potassium ions (K+) in the 0.50 M KCl KHP solution based on the measured emission intensity. This will give you the concentration of [K+] in the solution.

Hence, the concentration of potassium ions (K+) in a 0.50 M KCl KHP solution using flame emission spectrometry can be determined.

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Lard is a solid fat comprised mainly of saturated fatty acids (SFA). What feature of SFA contributes to this characteristic of lard?

Answers

The feature of SFA that contributes to the characteristic of lard being a solid fat is its molecular structure. SFA have straight, linear chains that pack tightly together, resulting in a solid or semi-solid texture at room temperature. This is why lard, which is loaded with SFA, has a solid consistency.


Lard is a solid fat comprised mainly of saturated fatty acids (SFA). The feature of SFA that contributes to this characteristic of lard is the absence of double bonds between carbon atoms in their molecular structure. This allows the fatty acid chains to pack closely together, leading to a more solid state at room temperature.

SPORTS FOR ALL (SFA), a fully integrated digital plus on-ground multi-sport platform, is the Official Partner of the Indian Team for The Olympics, The Commonwealth Games, and The Asian Games.

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The 30-kg disk is originally at rest, and the spring is unstretched. A couple moment M=88N⋅m is then applied to the disk as shown. Determine how far the center of mass of the disk travels along the plane before it momentarily stops. The disk rolls without slipping.

Answers

The 30-kg disk is originally at rest, and the spring is unstretched. A couple moment M=88N⋅m is then applied to the disk as shown.  far the center of mass of the disk travels is 0  along the plane before it momentarily stops.

The first step to solving this problem is to find the angular acceleration of the disk due to the moment applied. We can use the formula M = Iα, where M is the moment applied, I is the moment of inertia of the disk, and α is the angular acceleration.

The moment of inertia of a solid disk is given by I = (1/2)mr^2, where m is the mass of the disk and r is the radius. Substituting the given values, we get I = (1/2)(30 kg)(0.2 m)^2 = 0.6 kg⋅m^2.

Now, using M = Iα, we can find the angular acceleration: α = M/I = (88 N⋅m)/(0.6 kg⋅m^2) = 146.7 rad/s^2.

Next, we need to find the linear acceleration of the center of mass of the disk. Since the disk rolls without slipping, we know that the linear and angular velocities are related by v = rω, where v is the linear velocity, r is the radius, and ω is the angular velocity. Taking the time derivative of this equation, we get a = rα, where a is the linear acceleration and α is the angular acceleration.

Substituting the given values, we get a = (0.2 m)(146.7 rad/s^2) = 29.34 m/s^2.

Now we can use the kinematic equation v^2 = u^2 + 2as, where u is the initial velocity (zero in this case), v is the final velocity (also zero when the disk momentarily stops), a is the acceleration we just found, and s is the distance traveled by the center of mass.

Solving for s, we get s = v^2/2a = 0. Note that this means the center of mass of the disk doesn't move at all before it momentarily stops, since the acceleration due to the applied moment is exactly balanced by the frictional force that prevents slipping with spring unstretched.

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A solenoid of length 2.00 m and radius 1.00 cm carries a current 0.100 A. Determine the magnitude of the magnetic field inside solenoid consists of 2000 turns of wire.

Answers

The magnitude of the magnetic field inside the solenoid is 1.26 x 10⁻⁴ T.

The magnetic field inside a solenoid can be calculated using the formula B = μ₀nI, where B is the magnetic field, μ₀ is the permeability of free space, n is the number of turns per unit length, and I is the current.

In this case, the solenoid has a length of 2.00 m and a radius of 1.00 cm, which means that the number of turns per unit length is n = N/L = 2000/2.00 = 1000 turns/meter. The current is given as I = 0.100 A.

The permeability of free space is μ₀ = 4π x 10⁻⁷ T m/A.

Substituting these values into the formula, we get:
B = μ₀nI
B = (4π x 10⁻⁷ T m/A)(1000 turns/m)(0.100 A)
B = 1.26 x 10⁻⁴ T

Therefore, the magnitude of the magnetic field inside the solenoid is 1.26 x 10⁻⁴ T.

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a -periodic signal is specified over one period as sketch over two periods from to . show that the exponential fourier series coefficients dn for this series are given by

Answers

This will give us a set of coefficients dn that can be used to reconstruct the original signal f(t) using the Fourier series formula: f(t) = ∑[n=-∞ to n=∞] dn * e^(j*n*2π*t/T) where the sum is taken over all integer values of n.

To answer your question, we first need to understand what is meant by a periodic signal and its Fourier series coefficients.

A periodic signal is a signal that repeats itself after a certain time interval, called the period (denoted by T). Mathematically, we can express a periodic signal f(t) as:

f(t) = f(t + nT)

where n is an integer (positive, negative or zero).

The Fourier series is a way to represent a periodic signal as a sum of sine and cosine functions of different frequencies. The Fourier series coefficients (denoted by cn and dn) represent the amplitudes of these sine and cosine functions.

Now, to answer your specific question:

You're given that the periodic signal is specified over one period, and you're asked to sketch it over two periods. Let's call this signal f(t).

Sketching f(t) over two periods means that we need to plot f(t) for t ranging from 0 to 2T. Since f(t) is periodic with period T, we can just repeat the same waveform over the second period.

Once we have sketched f(t) over two periods, we can then calculate the Fourier series coefficients dn using the formula:

dn = (1/T) * ∫[0,T] f(t) * e^(-j*n*2π*t/T) dt

where j is the imaginary unit, and the integral is taken over one period of the signal (from 0 to T).

The exponential term e^(-j*n*2π*t/T) represents the frequency component of the Fourier series. The coefficient dn tells us the amplitude of this frequency component.

To calculate dn, we need to evaluate the integral above for different values of n.

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Which of the following is not a characteristic of passive transport?
A) It requires binding of the molecule to be transported.
B) It is specific for the molecule being transported.
C) The energy for transport is generated by the gradient of the substance being transported.
D) The energy for transport is generated by the molecular bonds of the substance being transported.
E) Transport of the substance is the result of a conformational change.

Answers

D) The energy for transport is generated by the molecular bonds of the substance being transported. This is not a characteristic of passive transport, as passive transport relies on the energy generated by the gradient of the substance being transported.

Passive transport is also specific to the molecule being transported and does not require binding or a conformational change. Active transport is a process in which energy is expended to move molecules against their concentration gradient. This energy is generated by the molecular bonds of the substance being transported. This means that active transport requires a source of energy to function, which is typically provided by the hydrolysis of ATP. Passive transport, on the other hand, does not require energy generated by the transported substance. Instead, passive transport relies on the energy generated by the gradient of the substance being transported. This gradient can be established by a difference in concentration, charge, or pressure. Passive transport occurs spontaneously and does not require the input of external energy.

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I 3. For the circuit to the right, R TI2 5k a. calculate the current going through 5k resistor. W { 6K {12kR 129 V2 三十 B Iz - I t Iz 9V O V,-1,2 +1,67-6*R-5K1 (POKI, 20 I 2 22 - Iz 23 - V 20 V - Is (for) - Iz 12k1 GGN = 2 Node : I + I ₂ = I₂ I 2 = Iz I, b. How much power is being delivered to the circuit from the 9V batter in the left loop? ? ?

Answers

The current going through the 5kΩ resistor is 1mA.

The power being delivered to the circuit from the 9V battery in the left loop is 9mW.

a. To calculate the current going through the 5k resistor in the circuit to the right, we need to use Ohm's Law which states that I = V/R, where I is the current, V is the voltage, and R is the resistance.

First, we need to find the equivalent resistance of the circuit by combining the resistors. The 6kΩ and 12kΩ resistors are in parallel, so their equivalent resistance is:

1/Rp = 1/6kΩ + 1/12kΩ = 1/4kΩ
Rp = 4kΩ

The 5kΩ resistor is in series with the 4kΩ resistor, so their total resistance is:

Rtotal = 5kΩ + 4kΩ = 9kΩ

Now we can calculate the current going through the 5kΩ resistor:

I = V/Rtotal
I = 9V/9kΩ
I = 1mA


b. To calculate how much power is being delivered to the circuit from the 9V battery in the left loop, we can use the formula P = IV, where P is power, I is current, and V is voltage.

The current flowing through the left loop is the same as the current flowing through the 5kΩ resistor, which we calculated to be 1mA. Therefore, the power being delivered to the circuit is:

P = IV
P = 1mA x 9V
P = 9mW

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Three 9.0-Ω resistors are connected in series with a 12-V battery. Find (a) the equivalent resistance of the circuit and (b) the current in each resistor. (c) Repeat for the case in which all three resistors are connected in parallel across the battery.

Answers

To find the current in each resistor, we can use Ohm's law again. Since the battery voltage is 12 V and the equivalent resistance of the circuit is 1.0 Ω, the total current in the circuit is I = V/R = 12 V / 1.0 Ω = 12 A. Since the resistors are in parallel, the current through each resistor is the same and is given by I = 12 A / 3 = 4 A. Therefore, the current in each resistor is 4 A.

(a) When three 9.0-Ω resistors are connected in series with a 12-V battery, the equivalent resistance of the circuit is simply the sum of the individual resistances. Therefore, the equivalent resistance of the circuit is 27.0 Ω (9.0 Ω + 9.0 Ω + 9.0 Ω).
(b) To find the current in each resistor, we can use Ohm's law, which states that current is equal to voltage divided by resistance (I = V/R). Since the battery voltage is 12 V and each resistor has a resistance of 9.0 Ω, the current in each resistor is I = 12 V / 9.0 Ω = 1.33 A.
(c) When all three resistors are connected in parallel across the battery, the equivalent resistance of the circuit is calculated differently. The formula for calculating the equivalent resistance of resistors in parallel is 1/R_eq = 1/R1 + 1/R2 + 1/R3. Plugging in the values of 9.0 Ω for each resistor, we get 1/R_eq = 1/9.0 Ω + 1/9.0 Ω + 1/9.0 Ω, which simplifies to 1/R_eq = 1.0 Ω. Therefore, the equivalent resistance of the circuit is 1.0 Ω.

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explain your answer.drag the terms on the left to the appropriate blanks on the right to complete the sentences. accelration the impulse exerted

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The impulse exerted on the bowling pin equals the negative of the change in momentum of the projectile; its velocity would change during a very short time during collision. The rubber ball and beanbag would start with acceleration. Their direction would change in momentum, but the rubber ball would have greater change in momentum because it would bounce off and so its velocity would change during a very short time interval. The beanbag would continue to move in the same direction. Thus, a rubber ball would exert a greater impulse on the bowling pin.

In order to knock down a bowling pin by hitting it with a thrown object, we need to understand the concept of impulse and momentum. The impulse exerted on the pin is equal to the negative change in momentum of the projectile during the collision. This means that the greater the change in momentum of the projectile, the greater the impulse it will exert on the pin. When the rubber ball and beanbag hit the pin, they will experience a change in momentum due to the collision.

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--The complete question is, To win a prize at the count fair, you're trying to knock down a bowling pin by hitting it with a thrown object.

Fill the blanks with appropriate words on the right to complete the sentences.

The impulse exerted on the bowling pin equals the negative of the of the __________ projectile its velocity would change during a very short time during collision.

The rubber bail and bearbag would start with interval ts direction would change in momentum, but the rubber ball would have greater _____________ because it would bounce off and so _________. The beanbag would continue to move in the same direction. Thus a rubber bail would exert a greater impulse on the bowing pin.

Options:

acceleration

It's velocity would change during a very short time interval.

It's direction would change.

change in momentum.--

UWB WiGig has a range of up to 100 meters at 7 Gbps.
true/false

Answers

UWB WiGig, also known as Ultra-Wideband Wireless Gigabit, is a high-speed wireless communication technology that operates in the 60 GHz frequency band. This statement is true.

It is designed to provide data transfer rates of up to 7 Gbps and has a range of up to 100 meters. However, it is essential to note that these values may vary depending on environmental factors such as obstructions and interference.

WiGig was developed by the Wireless Gigabit Alliance, which later merged with the Wi-Fi Alliance. The technology is intended for applications such as high-definition video streaming, virtual reality, and wireless docking stations.

One of its main advantages is its ability to provide low-latency and high-speed data transfer, making it ideal for applications that require real-time communication.

In summary, UWB WiGig is a wireless communication technology that operates in the 60 GHz frequency band, providing data transfer rates of up to 7 Gbps and a range of up to 100 meters. The technology is designed for applications that require high-speed, low-latency wireless communication and can be affected by environmental factors.

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A 5.0-cm-diameter coil has 20 turns and a resistanceof 0.50 ohms. A magnetic field perpendicular to the coil is B =0.02t + 0.010t^2, where B is in tesla and tis in seconds. Find an expression for the induced current I(t)as a function of time.

Answers

The induced current I(t) as a function of time is I(t) = -40(0.0007854 + 0.0007854t).

We have to find an expression for the induced current I(t) as a function of time in a 5.0-cm-diameter coil with 20 turns and a resistance of 0.50 ohms, considering the given magnetic field B(t) = 0.02t + 0.010t².

First, find the area A of the coil using the formula:

A = πr², where r is the radius of the coil.

Since the diameter is 5.0 cm, the radius r is 2.5 cm, or 0.025 meters.

Therefore, A = π(0.025)² ≈ 0.0019635 m².

Next, compute the magnetic flux Φ(t) through the coil as a function of time using the formula Φ(t) = NBA(t), where N is the number of turns and B(t) is the magnetic field.

In this case, Φ(t) = 20(0.02t + 0.010t²)(0.0019635) = 0.0007854t + 0.0003927t².

Calculate the rate of change of magnetic flux dΦ/dt with respect to time.

By taking the derivative of Φ(t), we get:

dΦ/dt = 0.0007854 + 0.0007854t.

To find the induced electromotive force (EMF) ε(t), use Faraday's Law:

ε(t) = -N(dΦ/dt).

In this case, ε(t) = -20(0.0007854 + 0.0007854t).

Lastly, find the induced current I(t) by dividing the induced EMF ε(t) by the coil's resistance R:

I(t) = ε(t)/R.

For this problem, [tex]I(t) =\frac{ [-20(0.0007854 + 0.0007854t)]}{0.50}[/tex].

Thus, the induced current I(t) as a function of time is I(t) = -40(0.0007854 + 0.0007854t).

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the loading area of a ferris wheel is 10 feet off the ground the diameter of the ferris wheel is 60ft and makes one complete revolution in 20 seconds

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A  person on the Ferris wheel will reach a maximum height of 70 feet above the ground during the ride. The Ferris wheel will complete one full rotation in 20 seconds, allowing the person to experience this height during the revolution.

The loading area of the Ferris wheel is 10 feet off the ground, and the Ferris wheel has a diameter of 60 feet. The Ferris wheel makes one complete revolution in 20 seconds.

To find the highest point that a person on the Ferris wheel reaches, add the diameter of the wheel (60 feet) to the height of the loading area (10 feet):

Highest point = Diameter + Loading area height
Highest point = 60 ft + 10 ft
Highest point = 70 feet

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calculate the energy in joules of a 4.87 g object moving at a speed of 487 m/s.. I think the equation for this problem is: KE = 1/2 mv^2. I know the mass and speed were given, but how do I find the volume??

Answers

The energy of the 4.87 g object moving at a speed of 487 m/s is approximately 577.51 joules.

To calculate the energy in joules of a 4.87 g object moving at a speed of 487 m/s, the equation to use is the kinetic energy formula:

[tex]K E=\frac{1}{2} m v^2[/tex].

In this case, you don't need to find the volume.

Instead, you should convert the mass to kilograms and then plug the given mass and speed into the equation.

Firstly, convert mass to kilograms:

4.87 g = 0.00487 kg (since 1 kg = 1000 g)


Plug the mass (m) and speed (v) into the kinetic energy equation:

[tex]KE = \frac{1}{2} (0.00487 \ kg) (487 \ m/s)^2[/tex]


Solve for KE:

KE = 1/2 (0.00487 kg) (237169 m²/s²)

= 577.51 J

Therefore, the energy of the 4.87 g object moving at a speed of 487 m/s is approximately 577.51 joules.

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At a particular instant, a positively charged particle is moving parallel to and in the same direction as the current in a long, straight wire. In what direction, if any, will the charge be deflected? Your answer: Parallel to the wire Toward the wire

Answers

"The direction of charge deflected is parallel to the wire or is towards the wire."

A charged particle travelling in a uniform magnetic field will experience a force that is perpendicular to both its direction of motion and the direction of the magnetic field, according to the Lorentz force equation. The Lorentz force is the name given to this force.

The charged particle in the scenario outlined in the question is travelling in the same direction as the current flowing through a wire, indicating that the wire is surrounded by a uniform magnetic field. The direction in which the particle is deflected if it is positively charged will be perpendicular to the magnetic field's direction as well as the direction of motion. Accordingly, depending on the magnetic field's direction, the particle will be deflected either upwards or downwards.

The particle will be deflected in the opposite direction if it has a negative charge.

It is significant to remember that the charged particle's deflection will be influenced by the strength of the magnetic field, the particle's charge and mass, and its velocity.

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Which electron in a Magnesium atom would experience a smaller effective nuclear charge, an electron in a 1s orbital or an electron in a 3s orbital? Explain your answer.

Answers

The electron in the 3s orbital would experience a smaller effective nuclear charge than the electron in the 1s orbital. This is because the 3s orbital is further away from the nucleus than the 1s orbital, and as a result, experiences less attraction to the positively charged nucleus. Additionally, there are other electrons in the 2s and 2p orbitals that shield the 3s electron from some of the positive charge of the nucleus, further reducing the effective nuclear charge experienced by the 3s electron.
An electron in a 3s orbital of a Magnesium atom would experience a smaller effective nuclear charge compared to an electron in a 1s orbital. This is because the 3s electron is farther from the nucleus and has more electron shielding from inner electrons (such as those in the 1s and 2s orbitals), reducing the attractive force from the positively charged nucleus.

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