Recent content by sundriedtomato

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    What Happens When Sulfur Reacts with Copper and Tin at High Temperatures?

    So the next step would be to use thermodynamic databases to find values and calculate reaction energies? Will try that. The trick is as Astronuc mentioned is that there are a lot of possibilities for CuxSy and SnxSy binaries formation. And it is quite hard to pinpoint the right amount of S for...
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    What Happens When Sulfur Reacts with Copper and Tin at High Temperatures?

    Dear all I have 250g of Copper 250g of Tin and 250g of Sulfur. Everything is in powdered form. Heated up in closed container wit surrounding nitrogen flow to avoid contact with Oxygen. Heating ramp is 3 hours to 1000K. What reaction will be the leading reaction? How to calculate how fast will...
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    Functions, operator => eigenfunction, eigenvalue

    Thank You Reshma! I already managed to solve it correctly, and find eigenvalues as well. For the case with the first function : a = 2h^2, and for the case with second function b = 6h^2. The problem was initially in understanding how to apply operator properly. Once example have been given, and...
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    Functions, operator => eigenfunction, eigenvalue

    So, after proper calculations, the result is http://img76.imageshack.us/img76/3385/38806746cn9.jpg Is this one correct? I posted an image of what I am given, and as far as I know, differentiation sign usually is placed before the function? I just don't get it - to what parts of an equation do...
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    Functions, operator => eigenfunction, eigenvalue

    I will give it a try right know. Thank You.
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    Functions, operator => eigenfunction, eigenvalue

    Yes, Thank You, but how do I calculate that? May I ask for instructions on how to calculate that left part of an equation? Is the result I got is correct?
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    Functions, operator => eigenfunction, eigenvalue

    [SOLVED] Functions, operator => eigenfunction, eigenvalue Homework Statement Show, that functions f1 = A*sin(\theta)exp[i\phi] and f2 = B(3cos^{2}(\theta) - 1) A,B - constants are eigenfunctions of an operator http://img358.imageshack.us/img358/3406/98211270ob1.jpg and find...
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    Solve Poisson Brackets: (g,h) = 1, (g^n,h) = ng^{n-1}

    That is beautiful. Thank You everybody who took part in this!
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    Solve Poisson Brackets: (g,h) = 1, (g^n,h) = ng^{n-1}

    (g,h) \equiv \frac{\delta g}{\delta q}\frac{\delta h}{\delta p} - \frac{\delta g}{\delta p}\frac{\delta h}{\delta q} = 1 so, from here we have (g^{n},h) \equiv \frac{\delta g^{n}}{\delta q}\frac{\delta h}{\delta p} - \frac{\delta g^{n}}{\delta p}\frac{\delta h}{\delta q} =>...
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    Solve Poisson Brackets: (g,h) = 1, (g^n,h) = ng^{n-1}

    Well, here is what I have: (g,h) \equiv \frac{\delta g}{\delta q}\frac{\delta h}{\delta p} - \frac{\delta g}{\delta p}\frac{\delta h}{\delta q} = 1 so, from here we have (g^{n},h) \equiv \frac{\delta g^{n}}{\delta q}\frac{\delta h}{\delta p} - \frac{\delta g^{n}}{\delta p}\frac{\delta...
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    Solve Poisson Brackets: (g,h) = 1, (g^n,h) = ng^{n-1}

    Yes, I have seen the definition of PB, and brief explanation of its properties. Should I involve partial integration by time? I will try to work out what (g^2,h) will give.
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    Solve Poisson Brackets: (g,h) = 1, (g^n,h) = ng^{n-1}

    [SOLVED] Poisson brackets. Homework Statement Show that, if Poisson brackets (g,h) = 1, then (g^{n},h) = ng^{n-1} where g = g(p,q) and h = h(p,q) p and q are canonical coordinates The Attempt at a Solution I suppose that this is purely mathematical, but I am still searching for a detailed...
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