No , there is no specific questions. What you just need is to proof this formula.
Original Q:
kE=gzE=mv²/2, pE=mgh, General Gravitiy??(is there any of this?) F=GM m/r² and F=kqı, q2/d²
Proof this formula. (@@)
In my opinions,
kE=gzE=mv²/2, pE=mgh, ( proof that these equations is...