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12.57 Air flows isentropically through a converging nozzle into a receiver in which the absolute pressure is 35 psia. The air enters the nozzle

12.57 Air flows isentropically through a converging nozzle into a receiver in which the absolute pressure is 35 psia. The air enters the nozzle with negligible speed at a pressure of 60 psia and a tem- perature of 200F. Determine the mass flow rate through the nozzle for a throat diameter of 4 in.

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