26. the temperature of an object is determined
by the
(1) average kinetic energy of its molecules
(2) average potential energy of its molecules
(3) total kinetic energy of the object
(4) total potential energy of the object

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