A U-tube open at both ends is partially full w/ water. Oil (p=750 kg /m3) is then poured into the right arm and forms a column L = 5.00cm high. a) Decide the difference h in the hi=eights of the two liquid surfaces. b) The right arm is then shielded from any air motion while air is blown across the top of the left arm until the surfaces of the two liquids are at the same height. Decide the speed of the air being blown across the left arm. Suppose the density of air is 1.29 kg / m3.