Can someone help with this question? Explain why the angular momentum of the Moon is conserved, even though the gravitational force
of the Earth exerts a net force (a centripetal force directed toward the Earth) on the Moon.

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .