A Beach ball is floating on the surface of the ocean. Neville is watching the beach ball moving up and down as waves move through the ocean. If the crests of the waves start coming closer together, what will definitely happen to the beach ball?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

The amount of potential energy possessed by an elevated object is equal to what?