6. what would be the mass of a rock falling from the sky if it hits the ground with a force of 147 n? (hint:
think about the acceleration all falling objects have! )

0.11 m/s and 0.28 m/s should be correct

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.

option number c is the right answer.

there are no components of a physical goal mentioned on the list of choices that you've provided.