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## Main Question or Discussion Point

*Before you say anything, this isn't homework. I'm not in school. This is just an independent study.

Here's the problem statement:

Calculate the velocity of an electron in the n = 1 state of a hydrogen atom.

I know the wavefunction and I know HOW to set up and solve the problem, but I don't know what to write for the velocity operator. In other words: ∫ψ(?)ψdτ.

Thanks

Here's the problem statement:

Calculate the velocity of an electron in the n = 1 state of a hydrogen atom.

I know the wavefunction and I know HOW to set up and solve the problem, but I don't know what to write for the velocity operator. In other words: ∫ψ(?)ψdτ.

Thanks