Which rock type can be formed by adding heat and pressure to any of the three types of rock?
a. igneous rock
b. no rock type forms this way.
c. metamorphic rock
d. sedimentary rock

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?

What is friction? how does it affect the motion of an object?