A 0.07 kg bullet traveling at speed hits a 13.6 kg block of wood and stays in the wood. The block with the bullet imbedded in it moves forward with a velocity of 7.7 m/s. What was the velocity (speed) of the bullet immediately before it hit the block (in m/s)

v = 1503 m/s

Explanation:

We will use the conservation of momentum to find the bullet's initial speed.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.