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8. A wind tunnel is designed with a convergent-divergent nozzle that has an exit-to-throat area ratio of Ae /At = 2.166 and a reservoir pressure of po = 1 atm. Assuming an isentropic flow. Using this information and details from Example 10.3 and Problem 10.9, along with Figure 10- 13, make the following calculations. Points are indicated next to each Part. a. Estimate the exit Mach number (Me) and throat Mach number (M.) when the exit pressure is pe = 0.967 atm. (2 Points per Part) b. Estimate the exit Mach number (Me) and throat Mach number (M.) when the exit pressure is pe = 0.947 atm. (2 Points per Part) c. Estimate the exit Mach number (Me) and throat Mach number (M.) when the exit pressure is pe = 0.08 atm. (2 Points per Part)