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Physics Quantum Mechanics Level: High School

An electron in the coulomb field of a proton is in a state described by the wave function 1/6[4ø100(r) + 3ø211(r)-ø210(R) + (10) ½ ø21-1 (R)]

(a) What is the expectation value of the energy ?

(b) What is the expectation value of L2 ?

(c) What is the expectation value of Lz ?