If the wave function for a free electron is given by ? = A sin kx + B cos kx, and the electron has a speed of 5.2 x 106 m/s, what is the value for k?
A)
1.9 x 10-7 m-1 m-1
B)
1.2 x 10-6 m-1
C)
7.2 x 109 m-1
D)
4.5 x 1010 m-1
E)
3.8 x 1011 m-1
D
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