1) Raul and Eitan are working for LA DWP. They have a horizontal tube that consists of a 7.0-cm diameter pipe that narrows to a 2.0-cm-diameter throat. In the pipe, the water pressure is twice atmospheric pressure and the water flows with a speed of 0.40 m/s. What is the pressure in the throat, assuming that the water behaves like an ideal fluid? The density of water is 1000 kg/m3, and atmospheric pressure is 1.01 105 Pa. A) 2.0 atm B) 0.12 atm C) 2.1 atm D) 1.9 atm