Question

5. Water is pumped up a hill and expelled into the atmosphere via a pipeline as shown in the figure. If the speed of effusivity (exhaust speed) of the water is 18 m/s, what must be the absolute pressure maintained by the pump? Treat the water as an ideal fluid. (316 kPa) (Hint: First find v1 at the bottom section of the pipe using the continuity equation and then use the Bernoulli's equation to solve the pressure due to the pump) D1 = 5.0 m Pump D2 = 1.5 m 5.5 m 18 m/s 6. If the air from the straw is blown horizontally with a speed of 35.0 m/s across the upper end of a second straw that is vertical, as shown in the fig, ?. Density of air = 1.29 kg/m³ and density of water =1000 kg/m³ (a) What's the pressure difference it creates between the top of the straw and at the surface of water (which is at atmospheric pressure) (790 Pa) (b) To what height does water rise in the vertical straw (8.1 cm)

          5. Water is pumped up a hill and expelled into the atmosphere via a pipeline as shown in the
figure. If the speed of effusivity (exhaust speed) of the water is 18 m/s, what must be the
absolute pressure maintained by the pump? Treat the water as an ideal fluid. (316 kPa)
(Hint: First find v1 at the bottom section of the pipe using the continuity equation and
then use the Bernoulli's equation to solve the pressure due to the pump)
D1 = 5.0 m
Pump
D2 = 1.5 m
5.5 m
18 m/s
6. If the air from the straw is blown horizontally with a speed of 35.0 m/s across the upper end
of a second straw that is vertical, as shown in the fig, ?. Density of air = 1.29 kg/m³ and
density of water =1000 kg/m³
(a) What's the pressure difference it creates between the top of the straw and at the surface of
water (which is at atmospheric pressure) (790 Pa)
(b) To what height does water rise in the vertical straw (8.1 cm)

5. Water is pumped up a hill and expelled into the atmosphere via a pipeline as shown in the
figure. If the speed of effusivity (exhaust speed) of the water is 18 m/s, what must be the
absolute pressure maintained by the pump? Treat the water as an ideal fluid. (316 kPa)
(Hint: First find v1 at the bottom section of the pipe using the continuity equation and
then use the Bernoulli's equation to solve the pressure due to the pump)
D1 = 5.0 m
Pump
D2 = 1.5 m
5.5 m
18 m/s
6. If the air from the straw is blown horizontally with a speed of 35.0 m/s across the upper end
of a second straw that is vertical, as shown in the fig, ?. Density of air = 1.29 kg/m³ and
density of water =1000 kg/m³
(a) What's the pressure difference it creates between the top of the straw and at the surface of
water (which is at atmospheric pressure) (790 Pa)
(b) To what height does water rise in the vertical straw (8.1 cm)

Added by Michael S.

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