Suppose that at time t = 0 an electron in a magnetic field in the +z direction has state 
. Let 
The expectation value 
as a function of time in this case is which of the below?
A. 
B. 
C. 0
D. 
E. 
F. Something else (specify)
D.
Physics & Space Science
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If a spring-operated gun can shoot a pellet to a height of 100. m on Earth, how high could the pellet rise if fired on the moon?
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Supernovas are thought to always result in
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