Recent content by fishinsea

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    Minimum momentum of electron in a hydrogen atom

    Okay that cleared up the question mostly, thank you!
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    Minimum momentum of electron in a hydrogen atom

    So the momentum uncertainty (and thus momentum) does not occur at ground state? As r -> infinity, would the momentum -> 0?
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    Minimum momentum of electron in a hydrogen atom

    But why would minimum energy imply minimum momentum? E = KE + PE, if you increase r, the potential energy increases (becomes less negative), allowing for a lower kinetic energy. I'm also tempted to think of this as a gravity/orbit problem, where the velocity would decreases the further away you...
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    Minimum momentum of electron in a hydrogen atom

    Homework Statement The energy of an electron in a hydrogen atom is: E = p^2/2m_e - \alpha e^2/r; where p is the momentum, m_e is the electron charge magnitude, and \alpha the coulomb constant. Use the uncertainty principle to estimate the minimum momentum in terms of m_e, a, e, \hbar...
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    Simple kinematics with friction

    Homework Statement A stack of two blocks sits on a frictionless surface; however, between the two blocks is a kinetic coefficient of friction μk. External force F is applied to the top block. During the time the force is applied, the top block is displaced by x1, and the bottom block is...
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