Plzzz
a piston in a heat engine does 600 j of work, and 1,700 j of heat are added to the system. determine the change in internal energy and explain how this example demonstrates the conservation of energy. enter your answer in the space provided

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?