Your answer for this question is the third option.
Power = Work / time
The work given here is 83J and the time it took to do 83J of work was 3s
So..
Power = 83J / 3s
Power = 27.67 W or 27.7 W
Your weight would change but not your mass, the moon has less gravity so therefore you are going to be lighter :-)
Answer:
longitudinal waves have those properties
