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1. Suppose an isothermal flat surface (long = 50 cm, width = 50 cm) at 150-degree in which air stream (at 20-degree C, free stream

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1. Suppose an isothermal flat surface (long = 50 cm, width = 50 cm) at 150-degree in which air stream (at 20-degree C, free stream velocity = 18 m/s) passes over it. The air flowing over the surface causes a drag force of about 0.30 N. Calculate the heat transfer rate from the surface to the air. Write assumptions. (Non-anonymous question ) (10 Points)

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