Water flows at speed of 4 m/s through a horizontal pipe of diameter 3.1 cm . The gauge
pressure P1 of the water in the pipe is 1.8 atm .
A short segment of the pipe is constricted to
a smaller diameter of 2.3 cm . What is the gauge pressure of the water
flowing through the constricted segment? Atmospheric pressure is 1.013 × 105 Pa .
The density of water is 1000 kg/m3.
The viscosity
of water is negligible.
Answer in units of atm.
Don't round answer.
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