Which statement best explains acceleration? A.
It is the total distance covered over a period of time.
B.
It is a change in velocity over a period of time.
C.
It is a change in displacement over a period of time.
D.
It is a change in direction over a period of time.

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?

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

Bonds within one water molecule are examples of