1.) What did you observe happened when a P-wave traveled from a solid to a liquid?

2.)What did you observe happened when an S-wave traveled into a liquid?

3.)Describe how a primary wave moves.

4.)Describe how a secondary wave moves.

5.)How do earthquakes help us learn about the interior of the Earth?

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.