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.4 (15%) Find the heat transfer per unit area through the composite wall in the figure.Assume one-dimensional heat flow and there is no heat flow between B and C. The

thermal conductivities are ka = 0.04 W/(m-°C), ka = 0.1 W/ W/(m-°C), kc= 0.03 W/(m-°C), and kp = 0.06 W/(m-°C).

Fig: 1

Fig: 2