you and a friend move a grand piano across the living room, exerting 25 newtons of force and performing 175 joules of work. it takes you 14 seconds. how far did you move the piano? how much power did you generate, in watts (joules/sec)?

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: 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 energy added you so much!