How does friction change energy? 1 Energy lost from machine changes into heat energy.
2 Friction causes energy to disappear.
3 Friction causes energy to get destroyed.
4 Energy changes from heat energy to mechanical energy.

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 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 energy added you so much!

Why does gravity have a lesser than grater effect on higher altitudes?

You notice the birds sitting on the electrical wires which of the following explain why the birds don't get shocked