When a rocket accelerates through space is there work done?

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

What are atoms of the same element with varying number of neutrons

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?