The total initial energy of a closed system is 1020 J. During an experiment, 500 J of this energy is converted into kinetic energy. What is the total final energy of this closed system? A. 1520 J
B. 520 J
C. 500 J
D. 1020 J

Which feature of a heating curve indicates a change ofn state

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

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n