Standard atmospheric air [TO = 288 K, p0 =101 kPa(abs)] is drawn steadily into an adiabatic, constant area duct as shown in the figure below. The duct is 2 m long and has an inside diameter of 0.1 m....

Extracted text: Standard atmospheric air [TO = 288 K, p0 =101 kPa(abs)] is drawn steadily into an adiabatic, constant area duct as shown in the figure below. The duct is 2 m long and has an inside diameter of 0.1 m. The average friction factor for the duct is estimated as being equal to 0.02. For air: k =1.4 , R= 287 J/kg. K Section (1) D = 0.1 m Section (2) l = 2 m a) What is the maximum flow rate through the duct in kg/s (M2 = 1)? b) Calculate at the inlet and outlet the Mach number, the pressure, the velocity. c) Determine the magnitude of the force per unit cross section area exerted by the inside wall of the pipe on the fluid between sections (1) and (2)