Answer:
where the rocks are exposed to really hot conditions and high pressure....these conditions are found deep where tectonic plates meet or deep inisde the earth past our core
hope this helps !!!!!
-- The wavelength and the amplitude were described in my answer to your previous question.
-- A "compression" is a place where the wave is <em>compressed</em>. It's the darker section of the wave in the picture, where the wavelength is temporarily shorter, so several waves are all bunched up (compressed) in a small time.
-- A "rarefaction" is exactly the opposite of a "compression". It's a place where the wave gets more "<em>rare</em>" ... the wavelength temporarily gets longer, so that several waves get stretched out, and there are fewer of them in some period of time. The arrow in the picture points to a rarefaction.
Lower the resistance to sliding.
Answer:
ms⁻¹
Explanation:
Consider the motion of the bullet-block combination after collision
= mass of the bullet = 0.0382 kg
= mass of wooden block = 3.78 kg
= velocity of the bullet-block combination after collision
= spring constant of the spring = 833 N m⁻¹
= Amplitude of oscillation = 0.190 m
Using conservation of energy
Kinetic energy of bullet-block combination after collision = Spring potential energy gained due to compression of spring
![(0.5)(m + M)V^{2} = (0.5)kA^{2}](https://tex.z-dn.net/?f=%280.5%29%28m%20%2B%20M%29V%5E%7B2%7D%20%3D%20%280.5%29kA%5E%7B2%7D)
![(0.0382 + 3.78)V^{2} = (833)(0.190)^{2}](https://tex.z-dn.net/?f=%280.0382%20%2B%203.78%29V%5E%7B2%7D%20%3D%20%28833%29%280.190%29%5E%7B2%7D)
ms⁻¹
= initial velocity of the bullet before striking the block
Using conservation of momentum for the collision between bullet and block
![m v_{o} = (m + M) V](https://tex.z-dn.net/?f=m%20v_%7Bo%7D%20%3D%20%28m%20%2B%20M%29%20V)
![(0.0382) v_{o} = (0.0382 + 3.78) (2.81)](https://tex.z-dn.net/?f=%280.0382%29%20v_%7Bo%7D%20%3D%20%280.0382%20%2B%203.78%29%20%282.81%29)
ms⁻¹