What material resists the flow of electrons but will allow some electrons to flow?
a. conductor
b. insulator
c. semi-insulator
d. semi- conductor

Energy is the ability to do work which measures what

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?

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