A roller coaster is traveling 13 m/s when it approaches a hill that is 400 m long. Heading down the hill, it accelerates at 4.0 m/s squared. What is the final velocity of the roller coaster?

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 equation2: 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!