A 35 kg box is being pushed across the ground by a force of 160 N. If the coefficient of friction between the box and the ground is 0.3, what is the acceleration of the box?

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