In your own words, define the following terms. radiation, convection, and conduction.

Why is metal often used for cooking pan?

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •  

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false