Air flows at 700 m/s through a long duct in a wind tunnel, where the temperature is 15°C and the absolute pressure is 70 kPa. The leading edge of the wing in the tunnel can be represented by the 8°...

Air flows at 700 m/s through a long duct in a wind tunnel, where the temperature is 15°C and the absolute pressure is 70 kPa. The leading edge of the wing in the tunnel can be represented by the 8° wedge. Determine the pressure created on its bottom surface if the angle of attack is set at a = 6.5°.