8,000,000 kg of water are at the verge of dropping over niagara falls to the rocks 50.0 meters below. what is the change in gravitational potential energy as the water splashes on the rocks below?

Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp