Aball is dropped from a height of 100 ft. one second later another ball is dropped from a height of 75 ft, which one hits the ground first?

What is the rate of change in a objects position?

The air that we breath is made mostly of which gaseous molecule

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!