Which of the following actions is best understood using einstein's concepts rather than newtonian physics?

a. the formation of rust on a shovel
b. the cooking of an egg in a pan
c. the interaction of light and matter
d. the effect of a magnet on an iron nail

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!