If a man has a mass of 74 kilograms runs 800 meters in 150 seconds, what is
his average momentum?

If a balloon is taken outside on a very cold day, what will occur?

What is a subatomic particle with a negative charge and very little mass?

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.