Water flowing out of a horizontal pipe emerges through a nozzle. The radius of the pipe is 2.1 cm, and the radius of the nozzle is 0.47 cm. The speed of the water in the pipe is 0.67 m/s. Treat the water as an ideal fluid, and determine the absolute pressure of the water in the pipe. (The atmosphere pressure is P = 101000 Pa, and the density of water is ? = 1000 kg/m^3.)