For a medium to transmit a wave, the medium must

a. reflect the wave
b. absorb the wave completely
c. allow light to pass but not sound
d. permit the wave to travel through it

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!