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    Finite Cylinder in an electric field

    Hi, I was just wondering if anyone could might know where maybe the following situation has been worked out: A finite cylinder of length L sticks out of a flat, horizontal plane. The plane and the finite cylinder are both grounded, and are placed into a previously uniform electric field, E =...
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    Limit question

    This isn't really homework for a class, but i figured this would be the most appropriate place for this question: What would this quantity be? \lim_{t \rightarrow \infty} e^{-i \alpha |x - t|} \cdot (|x -t| - 1) - \lim_{t \rightarrow - \infty} e^{-i \alpha |x - t|} \cdot (|x -t| - 1) = ...
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    What notation would mathematicians use ?

    How would a mathematician write this: \hat{1} = \int dx |x\rangle \langle x| ?
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    Common Law Doctorate?

    Hello, I'm not sure if this would be the right sub-forum for this question, but perhaps someone could help me out. Forgive my naivete, but i have no idea what "common law doctorate" means. I have seen an ostensibly flakey individual who goes by the alias of "starship1" in several science...
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