Recent content by maxiee

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    A passing thought on postponed graduate study

    I work with a graduate student who was in the Air Force for twenty years. She is now pursuing her PhD in physics. It is definitely possible, but I would imagine the gap in between might hurt you.
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    Programs Are the predoctoral research positions available for physics majors?

    You can also apply for fellowships that will fund your time at grad school. Besides paying for tuition they also include a ~$30k/year stipend.
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    Finding total energy as a function of the Fermi Energy

    Remember that in \overline{E}=\frac{\int \! E N(E)D(E)dE}{\int \! N(E)D(E)dE} The numerator represents the total energy. This is what you want to use to calculate it. Your limits are from 0 to Fermi energy. The occupational number (N(E)) turns to 1, because at T = 0 it is a step function...
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    Finding total energy as a function of the Fermi Energy

    Just finished the same problem. I calculated the total energy using the numerator term in the average energy equation. You can integrate from 0 to E Fermi because T = 0. Then plug in the Fermi energy equation from the book (i'm assuming this is from Harris). It's eqn 9-42. After a lot of...
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    Azimuthal and Particle in a box equations

    Homework Statement Mathematically, the Azimuthal equation is the same differential equation as the one for a particle in a box. But \Phi(\phi) for m_l = 0 , is a constant and is allowed, whereas such a constant wave function is not allowed for a particle in a box. What physics accounts for...
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    Vector Calculus: Dots, Crosses & Triple Products Explained

    A good text with a physics emphasis https://www.amazon.com/dp/0393925161/?tag=pfamazon01-20
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    Finding the voltage using J and F? help T_T

    You need to simply solve for V in your relevant equation, giving you V=sqrt(PE*2/C) Make sure not to confuse your PE with current density J. Reading your heading I made the assumption you had a question about current density.
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