When waves travel through water, why do the moving water particles continue to return to their starting position?
A. Waves transfer matter, but not energy.
B. Waves transfer both matter and energy.
C. Waves transfer energy, but not matter.
D. Waves don't transfer matter or energy.

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