What is the stream function that represents the potential now about a cylinder whose radius is 1 m and which is located in an air stream where the free-stream velocity is 50 m/s? What is the change in pressure from the free-stream value to the value at the top of the cylinder (i.e. theta = 90 degree)? What is the change in pressure from the free-stream value to that at the stagnation point (i.e. theta = 180 degree)? Assume that the free-stream conditions are those of the standard atmosphere at sea level.