A cannon of mass 500 kg is loaded with a cannon ball of mass 1 kg. The cannon and ball are both stationary when the ball is fired at a velocity of 50 m/s. The cannon recoils when the
gun is fired. What is the absolute value of the recoil velocity of the cannon?

Does baby oil have a high or low velocity?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

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