4 years ago

2 questions: Are seismic waves mechanical or electromagnetic waves, and are seismic waves transverse or compressional waves?

1 answer:

4 0

Q. Are seismic waves mechanical or electromagnetic waves?

A. Seismic waves are mechanical waves.

Q. Are seismic waves transverse or compressional waves?

A. Seismic waves are compressional waves.

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Here since both children and merry go round is our system and there is no torque acting on this system

So we will use angular momentum conservation in this

$I_1\omega_1 = I_2\omega_2$

now here we have

$I_1 = \frac{MR^2}{2} + m_1R^2 + m_2R^2$

$I_1 = \frac{100(1.60)^2}{2} + (22 + 28)(1.60)^2$

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Now when children come to the position of half radius

then we will have

$I_2 = \frac{MR^2}{2} + m_1(\frac{R}{2})^2 + m_2(\frac{R}{2})^2$

$I_2 = \frac{100(1.6)^2}{2} + (28 + 22)(0.8)^2$

$I_2 = 160$

now from above equation we have

$256 (20.0 rpm) = 160(\omega_2)$

$\omega_2 = 32 rpm$

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Gravity. Hope this helps!

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What happens to the mantle and the plates at each type of plate boundary? How can you use the materials to show what happens? *

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