Quantum physics help please

Posted on 2014-12-16 06:15:00 in Physics by MARINA

1. An electron is in the +x spin state.

(a) Find ?Sz? and ?Sz for this electron.

(b) This electron goes through a Stern-Gerlach apparatus whose magnetic field points in the +z direction. What is the probability that it will emerge in the spin-up beam, and what is the probability that it will emerge in the spin-down beam?

2. An electron is in the quantum state

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