Recent content by Pwantar

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    Flory Huggins theory for linear polymer chains

    Hello everyone. I was wondering if anyone could recommend a source for Flory-Huggins theory on linear polymer chains. You see, I've been conducting an undergraduate research project concerning the topic. Every paper I look at, they simply quote an equation, and says that it follows from FH...
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    Accelerating Charges: Classical Theory and Light Radiation

    Yes, but did you integrate the Poynting vector over a sphere containing the charge? This gives you the power. A non-zero result there means it radiates... a non-zero Poynting vector does not. That is what it means for something to radiate... To carry energy out to infinity. What we are...
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    How to solve: ((1/k)')^2 + T^2(1/k)^2 - T^2 = 0

    As I'm too lazy to recheck what I've written now that I'm already at this fancy text box thing that I don't understand, but love, I would like to point out an error that may or may not be present, as well as a possible solution. ((1/k)')^2 + T^2*(1/k)^2 - T^2 = 0 (-k'/k^2)^2 + T^2*(1/k)^2 -...
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    How to solve: ((1/k)')^2 + T^2(1/k)^2 - T^2 = 0

    That equation again is: ((1/k)')^2 + T^2(1/k)^2 - T^2 = 0 where k is a function of s, T is a constant, and ' denotes differentiation with respect to s. If you're wondering, it arises when you try to describe the family of curves with constant torsion that lie on the unit sphere. Here, T is...
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    Probability of stealing a base Question

    Another way to do it is this: Let S represent the number of steals. P(S>=1) = 1 - P(S<1) = 1 - P(S=0) = 1 - P(not A and not B and not C) = 1 - P(not A)*P(not B)*P(not C) <---- Because they are independent events. Now, P(not A) = 1-.4 = .6, P(not B) = .4, P(not C) = .9 So...
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