Recent content by Sunfire

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    Do charge carriers affect the total charge of a material in solid state physics?

    Speaking of charge, it means adding 50 of each is the same as not having done anything. How are these 50 each are to be injected? What kind of material?
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    Do charge carriers affect the total charge of a material in solid state physics?

    A hole is an electron vacancy; injection of 50 electrons increases the negative charge by 50e-; injecting 50 holes decreases it by 50e-
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    Do charge carriers affect the total charge of a material in solid state physics?

    Yes, this is what should happen to maintain charge conservation. Each hole may be considered to have a positive charge contributed by the unbalanced positive charge of some atomic nucleus after an electron has been ejected by this same lattice atom.
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    Do charge carriers affect the total charge of a material in solid state physics?

    This violates the law of charge conservation, http://en.wikipedia.org/wiki/Charge_conservation in case it is meant to create additional positive charge
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    Do charge carriers affect the total charge of a material in solid state physics?

    I suppose this statement means the bulk of the material is electrically neutral. Why do you consider protons at all? They are part of the nuclei of the lattice atoms and will not migrate (hardly).
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    Bond Angle Questions: Is it Applicable for Single Bonded Atoms?

    I would second that. In my experience, bond angles are always considered between well defined bonds.
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    The difference between Auger Electron Spectroscopy and XPS.

    I looked into the "Encyclopedia of Materials Characterization" under Auger spectroscopy. It lists artifacts in the spectrum, but I am unsure when you say "core-level loss peaks" what is meant and would need to understand it. The secondary electron (energy) distribution typically shows a broad...
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    Living in Southern Ontario with a BSc in physics

    Getting into a graduate school in the US could be one way to go... Just need to take the GRE.
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    Derivative of a rotating unit vector

    This problem is solved here http://en.wikipedia.org/wiki/Rotating_reference_frame (scroll down to "Time derivatives in the two frames") for the case ##\omega##=const. Perhaps you can start here and assume angular velocity that is a function of time.
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    Free Curve Fitting Software for 4 Parameter Equation

    TableCurve is great for the type of fitting you need, but it's not free... This is a good site where one can select operating system, rating etc. and look for curve fitting packages that are either free or shareware. There is a wide selection, so I am confident you will in high likelihood find...
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    What Could Be Causing Excel to Stop Functioning on My Computer?

    I have recently installed Office Student 2003 on a Vista Business PC and had problems with activation. Had to activate it over the phone. Since then, often I have dialogs pop up saying something about "CJRT handler" or the sort... Perhaps 2003 is getting old for the new versions of Windows
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    How do I find this answer on TI-89 calculator?

    More examples can be found here: http://education.ti.com/html/t3_free_courses/calculus89_online/mod18/mod18_lesson3.html
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    How do I find this answer on TI-89 calculator?

    deSolve(x*(dy/dx)+2*y=10*x^2,x,y). Go to F3 --> Calc --> desolve; x is the independent variable, y is the function / dependent variable.
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    Where can I find small bearings?

    Also, I would check on ebay. You may find dental etc. bearings that suit your needs
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