78. 5.23. Assume that a supersonic nozzle operating isentropically delivers air at an exit Mach number of 2.8. The entrance conditions are 180 psia, 1000.R, and near-zero Mach number. (a) Find the...

Extracted text: 78. 5.23. Assume that a supersonic nozzle operating isentropically delivers air at an exit Mach number of 2.8. The entrance conditions are 180 psia, 1000.R, and near-zero Mach number. (a) Find the area ratio A3/A2 and the mass flow rate per unit throat area. (b) What are the receiver pressure and temperature? (c) If the entire diverging portion of the nozzle were suddenly to detach, what would the Mach number and mA be at/the new outlet?