When you see a traffic light turn red you apply the brakes and stop with constant acceleration. If your initial speed was 24m/s, what was your average velocity during braking​

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