good call on the minus sign. There's no mention of the commutator on the worksheet, is that necessary to know before doing the problem? I thought that the Hamiltonian operator for a hydrogen atom was -Hbar^2/2u-e^2/r. I'm really confused
I can't find any reference to this in my notes.
The problem is to calculate the average potential energy of a hydrogen 1s electron. The operator is V=e2 /4piE0r