A 2000 kg elevator with broken cables in a test rig is falling at 4.0 m/s when itcontacts a cushioning spring at the bottom of the shaft. The spring is intendedto stop the elevator, compressing 2.0 m as it does so. During the motion asafety clamp applies a constant 17,000 N frictional force to the elevator. Whatis the necessary spring constant, k

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!