solve b

6. Consider the same airfoil section in a wind tunnel from Problem 3, except this time, the flow is accelerated to V~ = 792 km/hr, meaning it should be treated as "compressible." The initial atmospheric conditions are set to hc = 5.6 km. At a given point, A, on the airfoil, the pressure is pa = 0.40 atm. Using this information and details from Example 4.12 and 4.17, make the following calculations. Points are noted next to each part. a. Calculate the temperature (74) at point A, in C. Use 4 decimal places in your answer. (4 Points) b. Calculate the velocity (V.4), in km/hr, and Mach number (M,4) of the flow at point A. (5 Points)