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Q2/ air at 25 °C and 1 atm flows over flat plate at 20 m/s. the plate is 75 mm long
and it is maintained at 55 °C. Assume unit depth in z-direction, find the heat
transfer rate from the plate. p31.128 kg/m^3 ,k=0.02723 W/(m.K) p=1.906x10^(-5)
* kg/(m.s) ,cp=1.007 kJ/(kg.°C)
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