The movement of the tectonic plates is caused by a) convection currents in earth's mantle. b) the gravity of the iron-nickel core. eliminate c) the rotation of the earth. d) the moho discontinuity.

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!