What is the kinetic energy of a ball with a mass 2.55 kg and a velocity of
3.81 m/sec?

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?

Explain why you think this diagram shows what happened to the carbon in the biodome.

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.