Recent content by Caldo120

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    Calculating % Contribution of nth Wavefunction in Potential Well

    Homework Statement What fraction (as a percentage) does the n=(2x2-1)th infinite potential well wavefunction contribute to the 'classical' initial wavefunction psi(x,t=0)=1/sqrt(L) ? (Why are the even n excluded?) Homework Equations psi(x,t=0) = 1 / sqrt(L) The Attempt at a Solution...
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    The Units of a Position Vector in a Hilly Landscape

    oh dear. apologies. I was flicking through my table of "INTEGRALS" and wondering why it didn't make sense. Thoroughly embarrassed. Thank you though for showing me I must pay more attention!
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    The Units of a Position Vector in a Hilly Landscape

    I'm struggling with the maths side of this question. I've done some searching and came across an answer of v(t) = i30 - k10sin10t and I kind of understand this. I do not understand why the sin is negative though. Could anyone run through the differentiation of this? Thanks!