A convergent–divergent nozzle has an exit throat area ratio of 3.0. It is to be supplied with air. Find: (a) The first, second, and third critical pressure ratios; (b) The exit plane Mach number in...

A convergent–divergent nozzle has an exit throat area ratio

of 3.0. It is to be supplied with air. Find:

(a) The first, second, and third critical pressure ratios;

(b) The exit plane Mach number in each case;

(c) The throat Mach number in each case.