A 40 mi/hr wind blows toward a hill arising from a plain that can be approximated with the top section of a half-body. The height of the hill approaches 200 ft. Assume an air density of 0.00238 slugs/ft. (a) What is the magnitude of the air velocity at a point on the hill directly above the origin [point (2)]? (b) What is the elevation of point (2) above the plain and what is the difference in pressure between point (1) on the plain far from the hill and point (2)? 200 h