if you move an object to a planet with a larger radius, what happens to the gravitational acceleration?

The magnetic field strength willl be 2 T. A force known as the Lorentz force acts on the charge when it is subject to an electric and magnetic field.

Lorentz force is defined as the force acting on point charge when it is moving in an electric and magnetic field.

The given data in the problem is ;

B is the magnetic field strength =? T.

Current, I =?

L is the length of the wire

The magnetic force is found as;

F= BIL

15 N  = B × 3 A ×  2.5 m

B = 2 T

Hence, the magnetic field strength willl be 2 T.

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Answer:

Explanation:

Set the equations for work and kinetic energy equal to each other. Work equals force times distance and kinetic energy equals one-half the mass of the object times its velocity squared, so F_d = (m_ ÷ _2)_v2. Substitute the measurements for force, distance and mass into the equation.

The energy an object has as a result of motion is known as kinetic energy.

A force must be applied to an object in order to accelerate it. We must put in effort in order to apply a force.

After the work is finished, energy is transferred to the item, which then moves at a new, constant speed. Kinetic energy is the type of energy that is transferred and is dependent on the mass and speed attained.

The square of the object's velocity determines the kinetic energy. In other words, when an object's velocity twice, its kinetic energy quadruples.

Therefore, The energy an object has as a result of motion is known as kinetic energy.

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Answer:

KE=1/2*m*v^2

KE=1/2*15*2.7^2

KE=54.675 J

Explanation:

When you eat pizza, chemical energy is transferred to mechanical energy.

Energy can be defined as the ability to do work. Thus, energy must be possessed or transferred to a physical object (body) before work can be done.

In Science, there are different forms of energy and these include the following;

When a person eats pizza, the chemical energy contained in this snack is transferred to mechanical energy.

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Answer:

B because I remember that's what peer pressure is

Answer:

C

Explanation:

I think it is C because peer pressure is doing something you don't want to do and you think it is wrong to do that, but it could aslo be B.  

The electric force between the rod and the cloth is 4.6 x 10⁷ N.

The electric force between the rod and the cloth is calculated by apply Coulomb's law.

This law states that electric force between two charged bodies is directly proportional to the product of the charges and inversely proportional to the distance between the charged bodies.

Mathematically, this law is given as;

F = kq²/r²

where;

Substitute the given parameters and solve for the electric force between the rod and the cloth as shown below.

F = kq²/r²

F = (8.99 x 10⁹ x 14.3 x 10⁻³ x 14.3 x 10⁻³) / (0.2)²

F = 4.6 x 10⁷ N

Thus, the electric force between the rod and the cloth is determined by applying Coulomb's law.

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(a) The drum takes 2.807 seconds to come to a stop.

(b) The drum rotates through an angle of 48.75 radians before coming to rest.

(a) To find the time it takes for the drum to stop, we can use the formula:

angular acceleration = (change in angular velocity) / time

Rearranging, we get:

time = (change in angular velocity) / angular acceleration

Substituting the given values, we get:

time = 17.4 / 6.21 = 2.807 seconds

So the drum takes 2.807 seconds to come to a stop.

(b) To find the angle through which the drum rotates before coming to rest, we can use the formula:

final angular velocity^2 = initial angular velocity^2 + 2 * angular acceleration * angle

We know that the final angular velocity is zero, the initial angular velocity is 17.4 rad/s, and the angular acceleration is -6.21 rad/s^2 (negative because the drum is slowing down). Substituting these values, we get:

0^2 = 17.4^2 + 2 * (-6.21) * angle

Solving for the angle, we get:

angle = 48.75 radians

So the drum rotates through an angle of 48.75 radians before coming to rest.

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To repeat the same sound clip one after another, the method used is to concatenate the sound sample arrays. By concatenating the sound sample arrays, you create a new array that contains multiple copies of the original sound clip, effectively repeating it one after another. Therefore the correct option is b. Multiply the sound sample arrays by a scalar value less than 1.

When you want to repeat the same sound clip, one after another, you can achieve this by concatenating the sound sample arrays. Here's a step-by-step explanation:

1. Load the sound clip into MATLAB and convert it into a sound sample array.

2. Determine the number of times you want to repeat the sound clip.

3. Use the concatenation operator `[ ]` to join the sound sample arrays together.

4. Repeat the sound sample array as many times as desired by appending it to itself using the concatenation operator. For example, if you want to repeat the sound clip three times, you would write `[soundClip, soundClip, soundClip]`.

5. Store the concatenated sound sample array in a new variable.

6. If needed, you can then play the repeated sound clip using the `sound()` function in MATLAB.

By concatenating the sound sample arrays, you create a new array that contains multiple copies of the original sound clip, effectively repeating it one after another.

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Answer:

1240j I think this is the answer

The centre of mass of the region is bounded by y=9-x^2 y=5/2x, and the z-axis is (3.5, 33/8). Formulae used to find the centre of mass are as follows:x bar = (1/M)*∫∫∫x*dV, where M is the total mass of the system y bar = (1/M)*∫∫∫y*dVwhere M is the total mass of the system z bar = (1/M)*∫∫∫z*dV, where M is the total mass of the systemThe region bounded by y=9-x^2 and y=5/2x, and the z-axis is shown in the attached figure.

The two curves intersect at (-3, 15/2) and (3, 15/2). Thus, the total mass of the region is given by M = ∫∫ρ*dA, where ρ = density. We can assume ρ = 1 since no density is given.M = ∫[5/2x, 9-x^2]∫[0, x^2+5/2x]dAy bar = (1/M)*∫∫∫y*dVTherefore,y bar = (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]y*dA= (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]ydA...[1].

The limits of integration in the above equation are from 5/2x to 9-x^2 for x and from 0 to x^2+5/2x for y.To evaluate the above integral, we need to swap the order of integration. Therefore,y bar = (1/M)*∫[0, 3]∫[5/2, (9-y)^0.5]y*dxdy...[2].

The limits of integration in the above equation are from 0 to 3 for y and from 5/2 to (9-y)^0.5 for x.Substituting the values and evaluating the integral, we get y bar = (1/M)*[(9-5/2)^2/2 - (9-(15/2))^2/2]= (1/M)*(25/2)...[3].

Also, the x coordinate of the center of mass is given by,x bar = (1/M)*∫∫∫x*dVTherefore,x bar = (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]x*dA= (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]xdA...[4].

The limits of integration in the above equation are from 5/2x to 9-x^2 for x and from 0 to x^2+5/2x for y.To evaluate the above integral, we need to swap the order of integration. Therefore, x bar = (1/M)*∫[0, 3]∫[5/2, (9-y)^0.5]xy*dxdy...[5].

The limits of integration in the above equation are from 0 to 3 for y and from 5/2 to (9-y)^0.5 for x.

Substituting the values and evaluating the integral, we get x bar = (1/M)*[63/8]= (1/M)*(63/8)...[6]Thus, the centre of mass of the region is bounded by y=9-x^2 y=5/2x, and the z-axis is (3.5, 33/8).

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Answer:

Approximately \(0.29\; {\rm m \cdot s^{-1}}\).

Explanation:

Make use of the fact that total momentum is conserved in collisions.

The momentum of an object of mass \(m\) and velocity \(v\) is \(p = m\, v\).

The momentum of the two trolleys before the collision would be:

Thus, the total momentum of the two trolleys right before the collision would be \(2\; {\rm kg \cdot m \cdot s^{-1}}\).

Since the two trolleys are stuck to one another after the collision, they could modelled as one big trolley of mass \(m = 3\; {\rm kg} + 4\; {\rm kg} = 7\; {\rm kg}\).

The momentum of the two trolleys, combined, is conserved during the collision. Thus, the total momentum of the new trolley of mass \(m = 7\; {\rm kg}\) would continue to be \(v = 2\; {\rm kg \cdot m \cdot s^{-1}}\) shortly after the collision.

Rearrange the equation \(p = m\, v\) to find the velocity of the two trolleys combined:

\(\begin{aligned}v &= \frac{p}{m} \\ &= \frac{2\; {\rm kg \cdot m \cdot s^{-1}}}{7\; {\rm kg}} \\ &\approx 0.29\; {\rm m \cdot s^{-1}}\end{aligned}\).

Answer:

0.128

Explanation:

Credit to charlizebarth

Answer:

0.0128

Explanation:

This answer works for Acellus!

✔ First calculating the speed :

V = d(in m)/t(in s)

✔ You now know the average car's speed, is time it takes to stop it completely, so you can calculate its acceleration :

a = V/t

Answer:

a

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The answer is D, ethical concerns.

Good luck on the Unit Test, fellow edge.nuity user.

The average speed of the particles in terms of the speed of light is 0.976c. Given that, The particle-X has a lifetime of 256.2.A particle track detector is used to measure the speed of particles. On average, the particles leave 10.6 cm long tracks before they decay into other particles that are not observable by the detector.

The formula to calculate the average speed of the particles is given as;v = d / t Where,v = velocity of the particles, d = distance traveled by the particles, and t = time taken by the particles. The distance traveled by the particles before they decay is 10.6 cm = 0.106 m. The lifetime of the particle is given as 256.2 s. Therefore, time taken by the particle to decay, t = 256.2 s.

The speed of the particles can be calculated as follows; v = d / tv = 0.106 / 256.2v = 4.135 × 10^-4 m/s The speed of the particles in terms of the speed of light can be calculated as follows; Speed of light = 3 × 10^8 m/s Average speed of the particles in terms of the speed of light, v/c= (4.135 × 10^-4) / (3 × 10^8)= 0.976 × 10^-8= 0.976cTherefore, the average speed of the particles in terms of the speed of light is 0.976c.

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Answer:

\(\boxed {\boxed {\sf D. \ 6.02*10^{23} \ atoms}}\)

Explanation:

One mole of a substance contains the same amount of representative particles. These particles can be atoms, molecules, ions, or formula units. In this case, the particles are atoms of titanium.

Regardless of the particles, there will always be 6.02*10²³ (also known as Avogadro's Number) particles in one mole of a substance.

Therefore, the best answer for 1 mole of titanium is D. 6.02*10²³ atoms.

Answer:

D) 6.02 x 1023

Explanation:

A.P.E.X

Out of 150 approved mortgage applications, a random sample may have variable or interest-only mortgages.

we are given that a random sample of 150 approved mortgage applications is either variable or interest-only mortgages. A variable mortgage, also known as an adjustable-rate mortgage (ARM), is a type of mortgage in which the interest rate fluctuates based on market conditions. An interest-only mortgage is a type of mortgage in which the borrower only pays interest on the loan for a certain period of time before beginning to make principal payments.To determine what percentage of the sample is variable or interest-only mortgages, we would need more information on the breakdown of the sample. However, we know that these are two different types of mortgages that borrowers can choose from when applying for a mortgage.

A home loan application is a report submitted to a bank when you apply for a home loan to buy land. The application is extensive and includes information about the borrower's employment history, financial situation, and the property being considered for purchase, among other things.

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The change in the temperature of the rod is 20,000 K.

The change in the temperature of the rod is calculated by applying the following formula as shown below.

Δθ = ΔL / ( αL )

where;

The change in the temperature of the rod is calculated as;

Δθ = ( 1 ) / ( 2 x 25 x 10⁻⁶ )

Δθ = 20,000 K

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If Earth's atmosphere is filled with too many greenhouse gases, it will lead to an increase in the Earth's average temperature, known as global warming.

This is because the greenhouse gases trap heat from the sun, preventing it from escaping into space and causing the Earth's surface temperature to rise. This can have a range of negative consequences, including more frequent and severe heat waves, droughts, floods, storms, and rising sea levels due to the melting of ice caps and glaciers. It can also have impacts on ecosystems and biodiversity, as species struggle to adapt to the changing conditions. Therefore, it is crucial to reduce greenhouse gas emissions and limit the amount of greenhouse gases in our atmosphere to mitigate the effects of climate change.
This would cause global temperatures to rise, resulting in a variety of negative impacts on the environment, ecosystems, and human societies. These impacts may include more frequent and severe weather events, rising sea levels, loss of biodiversity, and disruptions to agriculture and water supplies.

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1. The final temperature of the system will be 0°C, the melting point of ice.

2. In terms of the total change in entropy (ΔS), we would need additional information about the process and system to calculate it accurately.

To determine the final temperature and the amount of ice that melts, we need to consider the heat exchange between the ice and the aluminum slab.

First, let's calculate the heat gained or lost by each object using the equation:

\(Q = mcΔT\)

\(Q_ice = (mass_ice)(specific heat capacity_ice)(ΔT_ice)\)

\(= (0.5 kg)(2,090 J/kg°C)(0 - (-10)°C)\)

= 10,450 J

For the aluminum slab:

Q_aluminum = (mass_aluminum)(specific heat capacity_aluminum)(ΔT_aluminum)

\(= (2.0 kg)(900 J÷kg°C)(0 - 30)°C\)

= -54,000 J

The system is thermally isolated, the total heat lost by the aluminum slab is equal to the total heat gained by the ice:

\(Q_ice = -Q_aluminum\)

10,450 J = 54,000 J

Let's determine the amount of ice that melts. To melt ice, it requires \(334,000 J÷kg of energy.\)

\(Amount of ice melted = Q_ice ÷latent heat of fusion\)

\(= 10,450 J ÷334,000 J/kg\)

≈ 0.0312 kg

Finally, to determine the final temperature, we can use the principle of energy conservation:

\(Q_ice + Q_aluminum = 0\)

\(10,450 J + (-54,000 J) = 0\)

From this equation, we can see that the heat gained by the ice is equal to the heat lost by the aluminum slab.

Therefore, the final temperature of the system will be 0°C, the melting point of ice.

In terms of the total change in entropy (ΔS), we would need additional information about the process and system to calculate it accurately. Entropy is a measure of the system's disorder and depends on various factors such as temperature, heat transfer, and changes in state. Without specific information about these factors, it is not possible to determine the total change in entropy in this scenario.

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An inductor is connected to 13 khz oscillator , the value of inductance , L  = 9.55 × 10 ⁻⁴ Henry , When rms voltage is 6.0 v .

9.55 × 10 ⁻⁴ Henry is the same as the value of the inductance (L) in this oscillating circuit.

With the following information:

Oscillator frequency is 18 kHz.

Peak current is 70 mA.

Rms voltage is 5.4 V.

To figure out the inductance (L), follow these steps:

To begin, we would use the following formula to determine the current's root mean square (rms) :

                           I rms = I₀ /√2

                            =  70 × 10 ⁻³ / 1.4142

                         I rms = 0.050 A

The following formula would be used to determine the oscillator's inductive reactance:

                          XL = V rms / I rms

                          XL  = 5.4 / 0.050

                             = 108 ohms

We can now solve for the inductance value (L) :

                          L = XL / 2 πf

Where:

We have, by substituting the parameters into the formula:

                     L = 108 / 2 × 3 .142 × 13 × 10³

                          L = 108 / 113112

                          L = 9.55 × 10 ⁻⁴ Henry .

The magnetic field that surrounds a current-carrying wire or coil is known as inductive reactance. In such an inductor or conductor, an alternating current creates an alternating magnetic field that has an effect on both the voltage (potential difference) and the current inside. Similar to the opposition to direct current (DC) in a resistance, inductive reactance is the property of an inductive coil that resists the change in alternating current (AC) through it.

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hayashi 2004 ), temperature-electrical conductivity relation of water for environmental monitoring and geophysical data inversion,

The temperature correction issue for 25 °C ranged from 0.0175 to zero.0198, with an average price of 0.0187.

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The relationship between instantaneous speed and instantaneous velocity is that instantaneous speed is the magnitude of the instantaneous velocity.

Instantaneous velocity is the rate of change of position for a very small interval of time. The interval of time so that that its value is almost zero. Instantaneous speed is the magnitude of instantaneous velocity without any direction.

The instantaneous velocity is vector quantity just like velocity and the instantaneous velocity is a scalar quantity just like speed. The value of if instantaneous velocity with direction is instantaneous velocity.

Therefore, the relationship between instantaneous speed and instantaneous velocity is that instantaneous speed is the magnitude of the instantaneous velocity.

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Determine threshold potential difference of diode by increasing voltage until current flows. Use a diode, multimeter, DC power supply, and take multiple readings of voltage and current. Plot graph of current against voltage to find threshold. Follow safety measures.

Hypothesis: The threshold potential difference of a diode can be determined by using a multimeter in series with the diode and gradually increasing the voltage until a current flows through the diode in the forward direction.

Equipment: A diode, a multimeter, a variable DC power supply, connecting wires, a breadboard, and a resistor.

Technique: The diode should be connected in series with the multimeter and the variable power supply on the breadboard. The power supply voltage should be gradually increased, and the multimeter should be used to measure the current flowing through the diode in the forward direction. The voltage at which the current starts to flow is the threshold potential difference.

Health and Safety: Ensure that all electrical connections are secure and insulated, avoid touching exposed wires, and use appropriate personal protective equipment.

Data Collection: Measure the voltage and current using the multimeter, and take multiple readings at different voltage values. The range of measurements should be selected based on the expected threshold potential difference of the diode.

Analysis: Plot a graph of the current against the voltage to observe the relationship between the two variables. The threshold potential difference can be identified as the voltage at which the current starts to increase significantly.

Control variables should be kept constant throughout the experiment, including the resistor and the distance between the components on the breadboard.

In summary, the threshold potential difference of a diode can be determined by gradually increasing the voltage until a current flows through the diode in the forward direction.

The equipment required includes a diode, multimeter, variable DC power supply, and connecting wires. The data should be collected by measuring the voltage and current using the multimeter, and multiple readings should be taken at different voltage values.

The threshold potential difference can be identified by plotting a graph of the current against voltage, and appropriate health and safety measures should be followed.

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Answer:

1. is held

2. was

3. be cancelled

4. has been moved

5. is being filmed

Explanation:

If you read them out, you can find out which ones flow the best! Hope this helps!

True. Hubble's law, which states that the recessional velocity of a galaxy is proportional to its distance from Earth, can be used to determine the distance to faraway galaxies.

By measuring the redshift of light emitted by galaxies, astronomers can calculate their recession velocity, and from there, use Hubble's law to calculate their distance from Earth. This has allowed us to estimate the size and age of the observable universe, and to study the large-scale structure of the cosmos.

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The core of a highly evolved high mass star, depending on the type of stellar remnant, can be as small as the size of the Earth (for a white dwarf) or as compact as about 10 kilometers (for a neutron star).

The core of a highly evolved high mass star is typically a compact object known as a stellar remnant. There are two main types of stellar remnants that can form depending on the mass of the star: white dwarfs and neutron stars.

A white dwarf is the remnant of a star with a mass up to about 8 times that of the Sun. Its core is about the size of the Earth, which is much smaller compared to the original size of the star.

On the other hand, a neutron star is formed when a star with a mass greater than about 8 times that of the Sun undergoes a supernova explosion. The core of a neutron star is incredibly dense and compact, with a radius typically on the order of 10 kilometers (6.2 miles). Neutron stars are composed primarily of tightly packed neutrons and are extremely massive.

In summary, the core of a highly evolved high mass star, depending on the type of stellar remnant, can be as small as the size of the Earth (for a white dwarf) or as compact as about 10 kilometers (for a neutron star).

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