Air in a room at T0= 290 K and P0= 95 kPa isdrawn steadily by a vacuum pump through a 1-cm-diameter,50-cm-long adiabatic tube equipped with a converging nozzleat the inlet. The flow in the nozzle section can be assumed tobe isentropic, and the average friction factor for the duct canbe taken to be 0.018. Determine the maximum mass flow rate of air that can be sucked through this tube and the Machnumber at the tube inlet

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