Dr. Evil stands on a 150 m high cliff and drops the kittens straight down. Fill out the following table that shows how the velocity and acceleration of the kittens change with time during their fall.

The air that we breath is made mostly of which gaseous molecule

Which best describes the difference between internal and thermal energy?

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.