If a stone with an original velocity of 0 is falling from a ledge and takes 8 seconds to hit the ground what is the final velocity of the stone

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

8. what is the orbital gravitational force of jupiter? how much stronger is this force than venus?