Consider the heat equation = V?u+Q(r) on an annulus {(r, 0): 1 s du at r < b}. Assume here that all relevant physical properties are = Suppose Q(r) =. For a radially symmetric solution u = u(r), we hav V’u = (r). Compute the equilibrium solution for this probler with prescribed boundary temperatures u(1) = 1, u(b) = 26. %3D 1 d r dr

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