If KE = mass x 9.8 m/s2 x distance, if a 75 kg object dropped 30 meters,
what is its KE?

you would expect a sound wave to speed up. - b)

found in the nucleus

has mass of one amu

area of focus

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.