Places on earth where most of the earthquakes originated or some mountains and volcanoes were formed mark the boundaries of each plate.

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

What is friction? how does it affect the motion of an object?

An atom that has gained or lost electrons is called an _