I NEED HELP I AM SO CONFUSED, WILL GIVE BRAIN. A watermelon is dropped from rest from the top of a 20m cliff.
A) How long does the watermelon be in the air?
B) What was the watermelon’s final velocity?

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!