A 1300-turn coil of wire that is 2.4cm in diameter is in a magnetic field that drops from 0.15T to 0 T in 12ms . The axis of the coil is parallel to the field.

Answer:

51.02m

Explanation:

KE = 1/2mv2

Where k.e = 250J

mass = 0.5 kg

g = 9.8 m/s2

250= 1/2×0.5×v^2

250= 0.5×0.5×v^2

250= 0.25v^2

v^2 = 250/0.25

v^2 = 1000

v =√1000

v = 31.62m/s

v^2= u^2-2gh........... (1)

Since the object will stop at it highest point, hence it final velocity there will be zero and since it is moving up against the gravity g= -9.8m/s^2. That was why the formula in equation 1 has a negative sign

From h = u^2/2g

Where v = 31.62m/s

g = 9.8m/s^2

H = (31.62m/s)^2/9.8×2

H= 1000/19.6

= 51.02m

Hence the height of it travelling will be

51.02m

Answer:

60N

Explanation:

6 times 60 =360 which is the amount so 60 n.

Answer: The maximum kinetic energy is 100 j.       

Explanation: The kinetic energy = (potential energy) + (kinetic energy) and the potential energy of 0 J implying its kinetic energy is 100 J, which is its maximum.

If the maximum kinetic energy of the pendulum is 100 J, then the maximum potential energy of the pendulum will be 100 J as well.

The given parameters;

Based on the principles of conservation of mechanical energy, energy is always conserved.

If the maximum kinetic energy of the pendulum is 100 J, then its maximum potential energy will be 100 J as well.

M.A = K.E + P.E

where;

At the lowest displacement of the pendulum;

M.A = K.E + 0

M.A = K.E = 100 J

At maximum displacement of the pendulum;

M.A = 0 + P.E

M.A = P.E = 100 J

Thus, if the maximum kinetic energy of the pendulum is 100 J, then the maximum potential energy of the pendulum will be 100 J as well.

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A gray whale travels an average of 120 km per day as it migrates is an example of Speed.

Speed is the ratio of distance to time taken. It is given by:

Speed = Distance / time

Speed is a scalar quantity, hence it has magnitude and no direction.

Hence, A gray whale travels an average of 120 km per day as it migrates is an example of Speed since the direction of the whale is not given.

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Answer:

The radius of the blender is approximately 0.5041\(\bar 6\) meters

Explanation:

The given parameters are;

The mass of the strawberry, m = 0.05 kg

The speed with which the strawberry is spun, v = 11.0 m/s

The centripetal force holding the strawberry = 12.0 N

The formula for the centripetal force, \(F_c\), is given as follows;

\(F_c = \dfrac{m \cdot v^2}{r}\)

Where;

r = The radius of the centripetal rotation, which is the radius of the blender

\(\therefore r = \dfrac{m \cdot v^2}{F_c}\)

Substituting the values gives;

\(\therefore r = \dfrac{0.05 \times 11^2}{12} = \dfrac{121}{240} \approx 0.5041 \bar 6\)

The radius of the blender, r ≈ 0.5041\(\bar 6\) meters.

Answer:

La fuerza ejercida sobre el piso del elevador hacia abajo es aproximadamente 1,004.075 N

Explanation:

Fuerza = Masa × Aceleración

El peso de la caja = 800 N

La velocidad hacia abajo = 5.0 m / s

Tomando la aceleración debida a la gravedad, g = 9,8 m / s²

La masa del cuerpo, m = 800 N / g = 800 N / (9,8 m / s²) ≈ 81,63 kg

La fuerza ejercida sobre el piso del ascensor durante la aceleración hacia arriba, 'N', se da como sigue;

N = m · g + m · a

a = 2,5 m / s²

∴ N = 81,63 kg × 9,8 m / s² + 81,63 × 2,5 m / s² = 800 N + 81,63 × 2,5 m / s² ≈ 1,004,075 N

La fuerza ejercida sobre el piso del ascensor hacia abajo ≈ 1,004.075 N

Answer:

1. Static friction = not moving

2.  sliding friction = moving

3. rolling friction = wheels

4. bumpy the surfaces are

5. how heavy the object is

6. it is easier to keep an object moving

7. static friction is GREATER than sliding friction

Explanation:

Explanation:

This is the correct answer...

I hope you understand...

The radius of the largest spherical asteroid from which a person can escape by jumping straight upward is approximately C) 3300 m.

To escape the gravitational pull of a spherical asteroid, a person would need to jump with enough initial velocity to overcome the asteroid's escape velocity, which is given by the formula:

v_esc = sqrt((2GM)/r)

where G is the gravitational constant, M is the mass of the asteroid, and r is its radius.

Assuming that the person can jump with an initial velocity of 0 m/s, we can set the escape velocity equal to the velocity of the person when he reaches the maximum height h:

v_esc = sqrt((2GM)/r) = sqrt(2gh)

where g is the acceleration due to gravity on the surface of the asteroid.

Solving for the radius r, we get:

r = (2GM)/(g^2h)

The mass of the asteroid can be found using its density, which is given as 3200 kg/m^3. The volume of the asteroid is (4/3)pi*r^3, so its mass is:

M = density x volume = (4/3)pi*r^3 x 3200 kg/m^3

Substituting this into the expression for r, we get:

r = (2G(4/3)pi*r^3 x 3200 kg/m^3)/(g^2h)

Simplifying, we get:

r^2 = (3gh)/(8piGdensity)

Substituting the given values of g, h, density, and G, we get:

r = sqrt((3 x 9.81 m/s^2 x h)/(8 x pi x 3200 kg/m^3 x 6.67 x 10^-11 m^3/kg s^2))

Evaluating this expression for h = 2 m (the approximate height a person can jump on Earth), we get:

r = sqrt((3 x 9.81 m/s^2 x 2 m)/(8 x pi x 3200 kg/m^3 x 6.67 x 10^-11 m^3/kg s^2))

r = 3300 m

Therefore, the radius of the largest spherical asteroid from which a person can escape by jumping straight upward is approximately 3300 m.

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the initial kinetic energy is equal to the final kinetic energy

Answer:

Process Skills: Observing - using your senses to gather information about an object or event. It is description of what was actually perceived. using standard measures or estimations to describe specific dimensions of an object or event

Explanation:

i hope this isnt confusing

Answer:

I think your bones, muscles, and joints your welcome :)

Explanation:

Michael is heavier

Sara weighs= 44kg

Michael= 104 pounds which is equal to 47.174kg

THUS, micheal is heavier

Hope this helped you- have a good day bro cya)

To solve this problem, we need to use conservation of energy. The spring has elastic potential energy due to being stretched, which will be transferred into kinetic energy as the glider moves.

At the release point, all of the potential energy will be converted into kinetic energy, so we can use the equation \(KE = 0.5mv^2 to solve for v.\)

We can also use the force required to hold the spring at 0.350 m to calculate the spring constant, k, using Hooke's Law (F = -kx).

Once we have k, we can calculate the maximum displacement of the glider (x = -0.100 m)

Use conservation of energy to solve for v. The correct answer is C) 2.87 m/s.

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Answer:

They subtract the atomic number from the atomic mass

Hope this helps

Please mark as the brainliest

Answer:

yes

Explanation:

masses attract each other

with a teeny-tiny force

Answer:

Explanation:

Acceleration in a mass/spring system is 0 at the equilibrium position, and this is where the velocity is at a maximum.

Velocity in a mass/spring system is 0 at the amplitude of the motion and this is where the acceleration is at a maximum.

Answer:

20 m

Explanation:

1 s = 4 m

5 s = ?

? = (4 x 5) = 20 meters

Answer:

distance = 0.8 m

Explanation:

given:

A bike travels at a constant speed of 4.0 m/s for 5.0s.

find:

How far does it go?

solution:

distance = speed / time

distance = 4.0 m/s

                     5 sec.

distance = 0.8 m

Answer:

I would say D. All terrestrial planets are made up of rock and minerals and the other planets are made up of that do not have a solid surface.

Answer D.

Explanation:

The position that visible light occupies lies between infrared and ultraviolet region. Option B is correct.

Visible light is a type of electromagnetic radiation that occupies the wavelength range between infrared and ultraviolet radiation. It has a wavelength range of approximately 400-700 nanometers (nm).

Electromagnetic radiation consists of waves of electric and magnetic fields that oscillate perpendicular to each other and travel through space. The electromagnetic spectrum encompasses all types of electromagnetic radiation, including radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.

The different types of electromagnetic radiation are distinguished by their wavelength and frequency. Visible light is the only part of the electromagnetic spectrum that is visible to the human eye and is responsible for the colors we see in the world around us.

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The relationship between pressure and volume of a gas is inverse, meaning that as volume decreases, pressure increases.

This relationship is known as Boyle's Law, which states that at a constant temperature, the pressure and volume of a gas are inversely proportional to each other. This means that as one variable (volume) changes, the other variable (pressure) will change in the opposite direction. As the volume of a gas decreases, the molecules become more compressed and collide with the walls of the container more frequently, leading to an increase in pressure. Similarly, as the volume of a gas increases, the molecules have more space to move around and collide with the walls less frequently, resulting in a decrease in pressure.

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For eq 1. the energy of the 528 nm photon is \(3.762 * 10^{-19} J\) and for eq 7&8. the spacing between the lines on the diffraction grating is \((1)(5.28 * 10^{-7} m)(0.27 m) / sin(15.9 degrees) = 1.28 10^{-6} m\), and the angle θ is 15.9 degrees.

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Answer:

Below

Explanation:

"echo location"

The sound travels the distance, d , to the food and back for a total distance of  2d

2d =   1530 m/s * .13 s

d = ~ 99 m away

If a ball is given a push so that it has an initial velocity of 2 m/s down a certain inclined plane, then the distance it has rolled after t seconds is s = 2t + t². Then it takes 11 seconds for the velocity to reach 24 m/s. The correct option is D.

To find the time it takes for the velocity of the ball to reach 24 m/s, we need to solve for the time when the velocity function equals 24 m/s.

The velocity function is the derivative of the distance function, so we'll first find the derivative of the distance function s = 2t + t² with respect to time t:

ds/dt = d/dt(2t + t²)

ds/dt = 2 + 2t

Now we can set the velocity function equal to 24 m/s and solve for t:

2 + 2t = 24

Subtracting 2 from both sides:

2t = 22

Dividing both sides by 2:

t = 11

Therefore, it takes 11 seconds for the velocity to reach 24 m/s.

The correct answer is (d) 11 seconds.

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Answer:

13.2 meters

Explanation:

(5.4) + (7.8)

Answer:

24.8m/s

Explanation:

Given data

m1= 10kg

u1=25m/s

m2=17kg

u2=16m/s

v1=10m/s

v2=??

Applying the conservation of linear momentum

m1u1+m2u2=m1v1+m2v2

substitute

10*25+17*16=10*10+17*v2

250+272=100+17v2

522=100+17v2

522-100=17v2

422=17v2

Divide both sides by 17

v2= 422/17

v2= 24.8 m/s

Hence the velocity of the red cart is 24.8m/s in the opposite direction of the blue cart

The magnitude and direction of the magnetic force on a particle of charge is - 2.21 in the opposite direction.

Magnetic force is defined as the electrically charged particles that are in motion and exhibit either attraction or repulsion. The interaction between moving and stationary charged particles is explained by the electromagnetic force, commonly known as the Lorentz force.

The magnitude and direction of the magnetic force can be calculated as

F = q v B sinθ

Given q = 13 C

v = - 20 m/s

B =  0.5 T²

F = 13 C x - 20 m/s x 0.5 T² sinθ

F = - 130 sinθ

Let θ is equal to 1

Then, F = 130 sin1

F = - 130 x 0.017

F = - 2.21

Thus, the magnitude and direction of the magnetic force on a particle of charge is - 2.21 in the opposite direction.

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The two windings of a conventional transformer are known as inductively linked.

Hence option B. Inductively linked is correct.

Transformers are electromagnetic devices that use electromagnetic induction to convert alternating current (AC) voltage from one voltage level to another voltage level.

They are one of the most essential and commonly utilized electrical devices, and they are utilized in a variety of applications in various sectors.

An electrical transformer has two coils of wire, which are referred to as windings.

The two windings, the primary and the secondary, are inductively linked.

The primary winding and the secondary winding are connected to a magnetic core, which helps the magnetic flux generated by one winding to pass through the other winding.

Inductively linked circuits have the capability to transfer power from one circuit to another without requiring a direct connection between them.

These circuits are critical in numerous applications because they enable the safe transmission of high voltages at long distances without the need for excessively thick wires or direct electrical connections.

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When the harmonic oscillator undergoes a transition from the n = 1 to the n = 2 energy level and absorbs a photon of wavelength 5.10 μm, we can use the equation E = hc/λ, where E is the energy of the photon, h is Planck's constant, c is the speed of light, and λ is the wavelength of the photon.

First, we need to find the energy of the absorbed photon. We know that the oscillator undergoes a transition from n = 1 to n = 2, so the energy of the photon is equal to the energy difference between these two levels. Using the equation E = -13.6 eV (1/n_final^2 - 1/n_initial^2), where n_final is the final energy level and n_initial is the initial energy level, we can calculate the energy difference to be 10.2 eV.
Now, we can use the equation E = hc/λ to find the wavelength of the absorbed photon. Rearranging the equation, we get λ = hc/E. Plugging in the values we know, we get λ = (6.626 x 10^-34 J s) x (3 x 10^8 m/s) / (1.602 x 10^-19 J/eV x 10.2 eV) = 1.22 μm.
When the oscillator undergoes a transition from the n = 2 to the n = 3 energy level, it emits a photon with a wavelength equal to the energy difference between these two levels. Using the same equation as before, we can calculate this energy difference to be 1.89 eV.
Again, using the equation E = hc/λ, we can find the wavelength of the emitted photon. Rearranging the equation, we get λ = hc/E. Plugging in the values we know, we get λ = (6.626 x 10^-34 J s) x (3 x 10^8 m/s) / (1.602 x 10^-19 J/eV x 1.89 eV) = 3.30 μm.
Therefore, the wavelength of the absorbed photon when the oscillator undergoes a transition from the n = 2 to the n = 3 energy level is 3.30 μm.

To find the wavelength of the absorbed photon when the harmonic oscillator undergoes a transition from the n = 2 to the n = 3 energy level, we can use the energy difference between these levels and the relationship between energy and wavelength.

Here's a step-by-step explanation:
1. Determine the energy difference between n = 1 and n = 2 levels using the given wavelength (5.10 μm):
E1 = (hc) / λ1, where h is Planck's constant (6.626 x 10^(-34) J s), c is the speed of light (3 x 10^8 m/s), and λ1 is the given wavelength (5.10 x 10^(-6) m)
2. Calculate the energy difference between the n = 2 and n = 3 levels:
E2 = E1 * 2 (because the energy levels of a harmonic oscillator are evenly spaced)
3. Determine the wavelength of the absorbed photon during the transition from n = 2 to n = 3:
λ2 = (hc) / E2
4. Solve for λ2 to find the wavelength of the absorbed photon.
By following these steps, you will find the wavelength of the absorbed photon when the harmonic oscillator undergoes a transition from the n = 2 to the n = 3 energy level.

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