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3 years ago

Explain centripetal force, is it a force? When does it occur, give a cartoon example or a movie example.

Physics

1 answer:

seraphim [82]3 years ago

5 0

Answer:

Centripetal force is the force on a body moving in a circle that points inward toward the point around which the object moves. The force in the opposite direction, pointing outward from the center of rotation, is called centrifugal force. For a rotating body, the centripetal and centrifugal forces are equal in magnitude, but opposite in direction

Explanation:

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PLEASE HELP ME Color corresponds to the ______________ of light waves. wave speed cycles wavelength

lorasvet [3.4K]

Wavelength. Each wavelength is a certain color. For instance, shorter wavelengths (like 470nm) will be blue or violet, while longer wavelengths (like 650nm) will be red. Hope this helps! :)

5 0

3 years ago

Which part of the neuron receives messages from other neurons?

kow [346]

Answer:

Explanation:

the dendrites is a part of the neuron receives messages from other neurons. Dendrites extend out from the cell body and receive messages from other nerve cells

3 0

2 years ago

A sinusoidal traveling wave is generated on a string by an oscillating source that completes 116 cycles per minute. What is the

slava [35]

Answer:

$\lambda =6.32\ cm$

Explanation:

given,

number of cycle complete (f) = 116 cycles per minute

wavelength observed at 11 m in 1.5 m.

$v = \dfrac{distance}{time}$

$v = \dfrac{11}{1.5}$

v = 7.33 m/s

$\lambda = \dfrac{v}{f}$

$\lambda = \dfrac{7.33}{116}$

$\lambda =0.0632\ m$

$\lambda =6.32\ cm$

The wavelength of the wave is equal to $\lambda =6.32\ cm$

6 0

3 years ago

A mass M is hanging from a rope of length L and mass m. A student gives the mass a quick horizontal shake to set up a wave which

disa [49]

Answer:

Explanation:

Expression for velocity of wave produced in a hanging wire can be given as follows

Velocity v = $\sqrt{\frac{T}{m} }$

where T is tension in wire and m is mass of wire per unit length.

In the given case

T = Mg + mg

= Mg

neglecting weight of rope

mass of the rope per unit length

= m / L

Velocity of wave

= $\sqrt{\frac{Mg}{\frac{m}{L} } }$

= $\sqrt{\frac{MgL}{m} }$

4 0

3 years ago

The magnitude of a velocity vector is called speed. Suppose that a wind is blowing from the direction N45°W at a speed of 50 km/

velikii [3]

To solve this problem, you must figure out (in vector form) both the wind vector and plane vector

w⃗ = wind vector

P⃗ = plane vector

To get the true course of the plane, you need to add the plane and wind vectors, the formula would be

w⃗ +P⃗ ,

which will result to the ground speed.

ground speed=||w⃗ +P⃗ ||

Using the planar representation of your situation, this will help you understand the equation, use this to make the equation more understandable.

w⃗ =AB¯¯¯¯¯¯¯¯, P⃗ =AC¯¯¯¯¯¯¯¯

the smaller circle is of radius 50 (similar to the wind speed) and the larger circle is of radius 200 (similar to the plane vector. To get the coordinates of these two vectors, use polar coordinates.

Let East be 0 degrees, so since the wind vector is on the circle of radius 50, we have:

w⃗ =⟨50cos(135),50sin(135)⟩=⟨−252√, 252√⟩.

P⃗ =⟨200cos(60),200sin(60)⟩=⟨100,\1003√⟩.

w⃗ +P⃗ =⟨100−252√ , 1003√+252√⟩

||w⃗ +P⃗ ||=(100−252√)2+(1003√+252√)2

√≈218.349218.

8 0

3 years ago