Must an object be rotating to have a moment of inertia?

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

What does si stand for,when referring to a system of measurement

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.