Great amounts of heat are found at hotspots. what is the source of this heat?

Which articulations allow for greatest range of motion?

The necleus of an atom is made up of what subatomic particles?

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?