Problem 2 (20 points): For the block shown in the figure below, let the left, bottom, and right sides be maintained at a constant temperature of Ts (i.e., T,= T2=T3=TA=Ts=T;= To=T12-T, K). The top surface areas (in thick lines) are exposed to a convection environment with an ambient temperature at T. (K) and heat transfer coefficient of h (W/m .K) and the dashed area is perfectly insulated. Assume that the system has internal heat generation at a rate per volume of q' (W/m), and that Ax = Ay. Derive the finite difference equation for node 10, and fully simplify the equation. 13 T., Th . 10 12 5 8 1