The work required to accelerate an object initially at rest to a speed v f is W. What is the additional work needed to increase its speed from v f to 2 v f? W
W/2

2W

3W

none of them

Energy is the ability to do work which measures what

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

How would a small bar magnet be oriented when placed at position x?