A crate is pulled to the right with a force of 71.3 N, to the left with a force of 110.3 N,
upward with a force of 564.8 N, and downward
with a force of 240.2 N.
What is the net external force in the x
direction?
Answer in units of N.

In raising a 6200-n piano with a pulley system, the movers note that, for every 2.2 m of rope pulled down, the piano rises 0.12 m . ideally, find the force required to lift the piano.

In a system, when potential energy decreases, then entropy also decreases. true false

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