What quantity is a measure of the average kinetic energy of the particles of a substance?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

True or false graphs must include scales that increase by the same amount

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points