Air enters a 5.5-cm-diameter adiabatic duct with inlet conditions of (mathrm{Ma}_{1}=2.2, T_{1}=250 mathrm{~K}), and (P_{1}=60 mathrm{kPa}), and

Question:

Air enters a 5.5-cm-diameter adiabatic duct with inlet conditions of $\mathrm{Ma}_{1}=2.2, T_{1}=250 \mathrm{~K}$, and $P_{1}=60 \mathrm{kPa}$, and exits at a Mach number of $\mathrm{Ma}_{2}=1.8$. Taking the average friction factor to be 0.03 , determine the velocity, temperature, and pressure at the exit.

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