25. a river flows toward the east. because of your
knowledge of physics, you head your boat
53° west of north and have a velocity of
6.0 m/s due north relative to the shore.
a. what is the velocity of the current?
b. what is your speed relative to the water?

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.