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FLUID MECHANICS - The truncated nozzle shown in the figure is used to meter the mass flow of air in a pipe. The area of

FLUID MECHANICS - The truncated nozzle shown in the figure is used to meter the mass flow of air in a pipe. The area of the nozzle is 3 cm2. The total pressure and total temperature measured upstream of the nozzle in the pipe are 300 kPa abs and 20C. The pressure downstream of the nozzle (back pressure) is 90 kPa abs. Calculate the mass flow rate.

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