A 2 kg cue ball moving 15 m/s hits a stationary eight ball. The 2 kg eight ball moves with a speed of 10 m/s after the collision.

Aplanet of mass m 6.75 x 1024 kg is orbiting in a circular path a star of mass m 2.75 x 1029 kg. the radius of the orbit is r 8.05 x107 km. what is the orbital period (in earth days) of the planet tplanet?

If we relied solely on the nonrenewable resources found in the u. s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

What quantity do units represent in value