Recent content by centauri

Thank you so much! That seems much clearer to me now.

Please...anyone, this is a concept I'm really struggling with.

So the potential energy of the ball will decrease in the ball-Earth system...but how about the Ball-Earth-Moon system?

Hello, here's a questions I was wondering if any of you could solve. I don't have the exact numbers, but the scenario is this: a guy standing on the Earth throws a ball upwards and catches it a few seconds later. How does would affect the potential energy and/or mechanical energy of the...