5.00 cm 1. Water enters a horizontal duct with a rectangular cross section at a speed of 1.00 m/s. The width of the duct remains constant but the height narrows from both above and below. Twenty meters from the entrance, the height is half of what it is at the entrance. If the water pressure at the entrance is 3000. Pa, what is the pressure 20.0 m downstream? 2. Water is flowing in a pipe as depicted in the figure. If the pressure on the lower gauge is 100 kPa, what pressure is indicated on the upper pressure gauge? 4.00 m/s 1.5 m 3.00 cm