Question

Water flowing through a 1.9-cm-diameter pipe can fill a 400 L bathtub in 3.4 min . What is the speed of the water in the pipe?

Answer #1

Water flowing through a 1.3 cm -diameter pipe can fill a 300 L
bathtub in 5.6 min . Part A What is the speed of the water in the
pipe? show work please.
The gauge pressure at the bottom of a cylinder of liquid is 0.30
atm . The liquid is poured into another cylinder with twice the
radius of the first cylinder.
What is the gauge pressure at the bottom of the second cylinder?
answer with 2 sig figs.

The water flowing through a 1.7 cm (inside diameter) pipe flows
out through three 1.3 cm pipes. (a) If the flow rates in the three
smaller pipes are 26, 19, and 12 L/min, what is the flow rate in
the 1.7 cm pipe? (b) What is the ratio of the speed of water in the
1.7 cm pipe to that in the pipe carrying 26 L/min?

The water flowing through a 2.0 cm (inside diameter) pipe flows out
through three 1.4 cm pipes. (a) If the flow rates
in the three smaller pipes are 24, 15, and 11 L/min, what is the
flow rate in the 2.0 cm pipe? (b) What is the
ratio of the speed of water in the 2.0 cm pipe to that in the pipe
carrying 24 L/min?

The water flowing through a 2.1 cm (inside diameter) pipe flows
out through three 1.2 cm pipes. (a) If the flow rates in the three
smaller pipes are 26, 19, and 10 L/min, what is the flow rate in
the 2.1 cm pipe? (b) What is the ratio of the speed of water in the
2.1 cm pipe to that in the pipe carrying 26 L/min?

Water flowing at 40 L/s through a 9 cm diameter pipe transitions
to a 3 cm diameter pipe.
What is the water pressure difference between the pipes?
By what factor does the speed of the water increase moving from
the larger to smaller pipe?

#23) Water flowing at 40 L/s through a 9
cm diameter pipe transitions to a 3 cm diameter pipe.
What is the water pressure difference between the pipes?
By what factor does the speed of the water increase moving from
the larger to smaller pipe?

Water flowing through a garden hose of diameter 2.78 cm fills a
22.0 L bucket in 1.50 min.
(a) What is the speed of the water leaving the end of the
hose?
(b) A nozzle is now attached to the end of the hose. If the
nozzle diameter is one-third the diameter of the hose, what is the
speed of the water leaving the nozzle?

Water flowing through a garden hose of diameter 2.73 cm fills a
21.0-L bucket in 1.35 min.
(a) What is the speed of the water leaving the end of the
hose?
(b) A nozzle is now attached to the end of the hose. If the
nozzle diameter is one-third the diameter of the hose, what is the
speed of the water leaving the nozzle?

Water flows at a rate of 30 L/min through a horizontal
7.0-cm-diameter pipe under a pressure of 80 Pa. At one point,
calcium deposits reduce the cross-sectional area of the pipe to 20
cm^2. What is the pressure at this point? Consider the water to be
an ideal fluid.

The water supply of a building is fed through a main pipe 7.00
cm in diameter. A 2.00 cm diameter faucet tap, located 2.10 m above
the main pipe, is observed to fill a 25.0 L container in 30.0
s.
(a) What is the speed at which the water leaves the faucet?
correct answer of 2.65m/s
(b) What is the gauge pressure in the 7.00 cm main pipe? (Assume
the faucet is the only "leak" in the building.)

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