Recent content by fluffy

Thank you very much, Doc.

Thank you very much for your response. Except now I'm confused for a new reason. So if a one kilo object is one meter away from the Earth then it will have -(6.67300 × 10-11 × 5.9742 × 1024 × 1)/(12) = -3.98658366 × 1014 potential energy? So it will have a huge amount of negative...

I read that lifting an object higher increases its potential energy. Is this true? I can't see how, considering: Ep = mgh F = mg so Ep = Fh F = (G x m1 x m2)/ d2 so Ep = (G x m1 x m2 x d)/ d2 so Ep = (G x m1 x m2)/ d So the greater the distance between the object and the...