5.A triangular shaped fin on a motorcycle engine is 0.5-cm thick at its base and 3-cm long (normal distance between the base and the tip of the triangle), and is made of aluminum (k = 150 W/m.K). This fin is exposed to air with a convective heat transfer coefficient of 30 W/m2.K acting on its surfaces. The efficiency of the fin is 50 percent. If the fin base temperature is 130ºC and the air temperature is 25ºC, what is the heat transfer from this fin per unit width.