Ahockey puck is pushed by a stick with a force of 750 newtons. the puck travels 2.0 meters in 0.30 seconds. how powerful is the push? (ignore frictional effects.)

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

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

In which of the following is positive work done by a person on a suitcase