(4-6 A portion of a long, hollow cylinder a < r < b, 0 < o...

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(4-6 A portion of a long, hollow cylinder a < r < b, 0 < o ( < 2) is o initially at temperature T = F(r, ). For times t> 0, the boundaries at r = a, r = b, = 0, and = 0 are all kept at zero temperature. Obtain an expression for the temperature distribution T(r, o, t) in the solid for times t > 0. (4-6 A portion of a long, hollow cylinder a < r < b, 0 < o ( < 2) is o initially at temperature T = F(r, ). For times t> 0, the boundaries at r = a, r = b, = 0, and = 0 are all kept at zero temperature. Obtain an expression for the temperature distribution T(r, o, t) in the solid for times t > 0.