Q1 (20p) You are assigned to derive equations of temperature distribution (0) and fin heat transfer rate (q) for a straight fin with uniform cross section (see the figure). Please assume that the fin is under adiabatic fin condition (the convective heat loss from the fin tip is negligible). a) Use the general fin equation below as a starting point and then derive the requested equations for and q?; b) Derive an equation to calculate fin effectiveness (r) for the same type of fin? 9f d20 - m0 = 0 dx2 Th Th A 9conv