Problem 3 (30 points): A wind tunnel is designed to operate at a Mach number, M-3, in the test section. For the given total pressure and total temperature, calculate: Atz A-10 pts) the ratio of the second throat area to that of the first throat area, when there is a normal Ari shock present in the test section. B-20 pts) the exit Mach number if the tunnel is discharging to ambient pressure, P-1 atm (under the conditions given in part A), and the exit area is six-times the second throat area. PO= 30atm TO=300K Att test section A +2 normal shock