If the cells in a circuit are the wrong way around why does it not work
2 mark explanation

I will mark brainliest

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

If a simple machine reduces the strength of a force, what must be increased?

Debris produced by mining is called