(Solved): 5)  please show symbols that were used, and use step-by-step manner if possible. I thumbs ...

The mass flow of air through a supersonic nozzle is \( 1.5 \mathrm{lb} \mathrm{m} / \mathrm{s} \). The exit velocity is \( 1500 \mathrm{ft} / \mathrm{s} \), and the reservoir temperature and pressure are \( 1000^{\circ} \mathrm{R} \) and \( 7 \mathrm{~atm} \), respectively. Calculate the Mach number at the exit of the nozzle. For air, \( c_{p}=6000 \mathrm{ft} \cdot \mathrm{bb} /((\mathrm{slug}) \) \( \left.\left({ }^{\circ} \mathrm{R}\right)\right) \) The Mach number at the exit of the nozzle is