Ideal Incompressible Water Flows Through a Horizontal Pipe of Cross-Sectional

Multiple Choice

Ideal incompressible water flows through a horizontal pipe of cross-sectional area 10.0 cm² at a pressure of 0.250 atm with a volume flow rate of 1.00 × 10^-3 m³/s.At a valve,the effective cross-sectional area of the pipe is reduced to 5.00 cm².What is the pressure at the valve?

A) 0.112 atm
B) 0.157 atm
C) 0.200 atm
D) 0.235 atm