Water Flows in the Horizontal Pipe Shown in the Figure

Multiple Choice

Water flows in the horizontal pipe shown in the figure. At A the diameter is 5.00 cm and at B the diameter is 4.00 cm The fluid in the manometer is mercury, which has a density of 13,600 kg/m³. The manometer reading h is 4.40 cm. We can treat water as an ideal fluid having a density of 1000 kg/m³. What volume of water is flowing through the pipe per second?

A) 0.0206 m³/s
B) 0.0426 m³/s
C) 0.00560 m³/s
D) 0.372 m³/s
E) 0.186 m³/s