When coal is burned energy is being converted to. energy

A hockey player uses her hockey stick to exert a force of 6.81 N on a stationary hockey puck. The hockey puck has a mass of 165 g. What is the acceleration of the hockey puck? a. 0.13 m/s2 b. 11.3 m/s2 c. 21.3 m/s2 d. 31.3 m/s2 e. 41.3 m/s2

If you slide down a rope, it's possible to create enough thermal energy to burn your hands or your legs where they grip the rope. Suppose a 30 kg child slides down a rope at a playground, descending 1.5 m at a constant speed.

Use the equation to find v, if u=24, a=7, and t=4. v=u+at

Which explains why more energy is released in nuclear reactions then in chemical reactions

A 4.2 kg parachutist is moving straight downward with a speed of 3.85 m/s

A 26-g steel-jacketed bullet is fired with a velocity of 630 m/s toward a steel plate and ricochets along path CD with a velocity 500 m/s.

A small boat is carrying four people across a river. Without any paddling, the boat moves downstream at a steady speed of 5 m/s. If the average weight of the four people is 60 kg, then what is the speed of the boat after one person gets?

Does temperature affect the dissolving phase?

In a clear, coherent, paragraph-length answer, explain why the speed of the apple half way between the release and the maximum height is not half the initial speed.

In pea plants Round (R) is a dominant trait and wrinkled nose (r) is a recessive trait. Which combination would result in wrinkled seeds? 1. RR 2. Rr 3. rr 4. ww