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Unformatted text preview: Hence the potential energy has almost the same value at all points inside the circle of iron atoms shown in the image. 1. If a particle in a box is in the nth energy level, what is the avg. value of its x-component of the momentum px? Our derivation of the stationary-state wave functions for a particle in a box shows that they are superpositions of waves propagating in opposite directions, just like a standing wave on a string. One wave has momentum in the positive x-directions, while the other wave has an equal magnitude of momentum in the negative x-direction. The total x-component of momentum is zero....
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- Spring '07