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(a) Calculate the matrix element Mk,k/ for a scattering potential eds r| U(r) = Uo (3) where qs is the screening parameter. (b) Also calculate

(a) Calculate the matrix element Mk,k/ for a scattering potential eds r| U(r) = Uo (3) where qs is the screening parameter. (b) Also calculate the total scattering rate for (i) E(k) = 2k2 2m * (ii) E(k) = hkup where OF is a characteristic velocity

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