Ethanol with a density of 789 kg/m3 moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is P1 = 2.00 104 Pa, and the pipe diameter is 8.00 cm. At another point y = 0.30 m higher, the pressure is P2 = 1.10 104 Pa and the pipe diameter is 4.00 cm.

a)Find the speed of flow (in m/s) in the lower section. m/s

(b)Find the speed of flow (in m/s) in the upper section.

(c) Find the volume flow rate (in m³/s) through the pipe.