Air enters in a CD nozzle with conditions M1 = 0.4, P1 = 500 kPa, T1 = 540K. The nozzle throat has At = 7.49 cm2 . A normal shock sits in the diverging section at a location where A2 = 25 cm2 .Upstream of the shock the air flow is isentropic . Downstream of the shock the flow is also isentropic. (a) find the mass flow rate; (b) find the shock Ms; (c) If the nozzle exit area is Ae = 50 cm2 , find the exit Mach number Me, exit temperature Te, and exit pressure Pe ;