Question

Water at a gauge pressure of P = 3.2 atm at street level flows into an office building at a speed of 0.90 m/s through a pipe 5.2 cm in diameter. The pipe tapers down to 2.6 cm in diameter by the top floor, 16 m above (Figure 1). Assume no branch pipes and ignore viscosity.

Part A: Calculate the flow velocity in the pipe on the top floor. Express your answer to two significant figures and include the appropriate units.

Part B: Calculate the gauge pressure in the pipe on the top floor. Express your answer to two significant figures and include the appropriate units.

Answer #1

Water at a gauge pressure of P = 3.4 atm at street level flows
into an office building at a speed of 0.86 m/s through a pipe 5.8
cm in diameter. The pipe tapers down to 2.6 cm in diameter by the
top floor, 16 m above (Figure 1). Assume no branch pipes and ignore
viscosity.
Calculate the flow velocity in the pipe on the top floor.
Calculate the gauge pressure in the pipe on the top floor.

Water at a gauge pressure of P = 3.4 atm at street level flows
into an office building at a speed of 0.64 m/s through a pipe 5.4
cm in diameter. The pipe tapers down to 2.8 cm in diameter by the
top floor, 16 m above (Figure 1). Assume no branch pipes and ignore
viscosity.
Calculate the flow velocity in the pipe on the top floor.
Calculate the gauge pressure in the pipe on the top floor.

Water at a gauge pressure of PPP = 3.6 atmatm at street level
flows into an office building at a speed of 0.96 m/sm/s through a
pipe 5.6 cmcm in diameter. The pipe tapers down to 2.8 cmcm in
diameter by the top floor, 16 mm above (Figure 1), where the faucet
has been left open. Assume no branch pipes and ignore
viscosity.
a.Calculate the flow velocity.
b.Calculate the gauge pressure in the pipe on the top floor.

Water at a pressure of 3.8 atm at street level flows into an
office building at a speed of 0.60 m/s through a pipe 5.6 cm in
diameter. The pipes taper down to 2.6 cm in diameter by the top
floor, 20m above (Fig. 10-49). Calculate the flow velocity and the
pressure in such a pipe on the top floor. Ignore viscosity.
Pressures are gauge pressures.
flow velocity___ m/s
pressure____ atm

Water at a pressure of 4.00 atm at street level flows into an
office building at a speed of 0.90 m/s through a pipe 3.60 cm in
diameter. The pipes taper down to 1.60 cm in diameter by the top
floor, 22.0 m above. Calculate the water pressure in such a pipe on
the top floor.

Water at a pressure of 3.50 atm at street level flows into an
office building at a speed of 0.55 m/s through a pipe 6.80 cm in
diameter. The pipes taper down to 3.00 cm in diameter by the top
floor, 26.0 m above. Calculate the water pressure in such a pipe on
the top floor.

Water at a pressure of 3.30 atm at street level flows into an
office building at a speed of 0.80 m/s through a pipe 6.40 cm in
diameter. The pipes taper down to 2.80 cm in diameter by the top
floor, 30.0 m above. Calculate the water pressure in such a pipe on
the top floor.

9. Water at a pressure of 4.50 atm at street
level flows into an office building at a speed of 0.80 m/s through
a pipe 6.00 cm in diameter. The pipes taper down to 3.00 cm in
diameter by the top floor, 27.0 m above. Calculate the water
pressure in such a pipe on the top floor.

A 7.2 cm diameter horizontal pipe gradually narrows to 4.8 cm .
When water flows through this pipe at a certain rate, the gauge
pressure in these two sections is 33.0 kPa and 26.0 kPa ,
respectively.
What is the volume rate of flow?
Express your answer to two significant figures and include the
appropriate units.

A 6.4 cm diameter horizontal pipe gradually narrows to 3.9 cm .
When water flows through this pipe at a certain rate, the gauge
pressure in these two sections is 30.5 kPa and 25.2 kPa ,
respectively.
What is the volume rate of flow?
Express your answer to two significant figures and include the
appropriate units.

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