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A proton (rest mass 938.3 MeV/c^2) is confined to a small region of space 2.0 nm wide. What is the uncertainty on its speed due to this confinement?
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Question: A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.25 \mu {\rm T} and a wavelength of 432 {\rm nm} is traveling in the + x direction through empty space. Write the equations for the electr ...
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