Consider a wing in a high-speed wind tunnel. at a point on the wing, the velocity is 850 ft/s. if the test-section flow is at a velocity of 780 ft/s, with a pressure and temperature of 1 atm and 505°r, respectively, calculate the pressure coefficient at the point.

Because if a good speech is delivered badly it can bore the audience, confuse them, or make them distrust the speakeri think they all come back to this one, except that last answer because that is false. if your audience starts making fun of you or gets distracted it is because they are either bored, confused or distrust you.