What is the most significant change in the comet's energy as it moves from point D to point A?
A.-KE increases, GPE increases
B-KE decreases, GPE increases
C.-KE decreases, GPE
decreases
D-KE increases, GPE decreases

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

According to the tide table below what time of day will the highest tide occur?

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.