An object is moving on a horizontal frictionless surface. If the net force applied to the object in the
direction of motion is doubled, the magnitude of
the acceleration of the object is
(1) halved
(3) unchanged
(2) doubled
(4) quadrupled

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!