An aluminum cooling fin for a heat exchanger is situated parallel to an atmospheric pressure air stream. The fin is 0.075 m high, 0.005 m thick, and 0.45 m in the flow direction. Its base temperature is 88?C, and the air is at 10?C. The velocity of the air is 27 m/s. Determine the total drag force and the total rate of heat transfer from the fin to the air.GIVENAir flow over a heat exchanger finFin length (L) = 0.45 mFin height (w) = 0.075Fin thickness = 0.005 mFin base temperature (Tb) = 88?CAir temperature (T??) = 10?CAir velocity (U??) = 27 m/sASSUMPTIONSSteady stateEdge effects are negligibleBoth sides of the fin are exposed to the airTransition to a turbulent boundary layer occurs atRex = 5×105Fin thickness is negligibleRadiation isnegligible

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H-0.005 m T-88° C 0.075 m Alr U.=27 m/s T.- 10°C L=0.45 m