A force of 120.0 N is applied to 2.000 cm diameter piston, which is in contact with a closed container of water (density of water = 1,000 kg/m3). A second piston, with a diameter of 25.00 cm and at the same height as the first piston, is also in contact with the water. What force does the water pressure exert on the second piston?

A) 18,750 N. B) 10,450 N. C) 9,500 N. D) 9,150 N. E) 8,450 N. A) 18,750 N. B) 10,450 N. C) 9,500 N. D) 9,150 N. E) 8,450 N.

What is the density of a mixture of 90% air (density air 1.20 kg/m3) and 10% helium (density of 0.180 kg/m3)?

A) 0.680 kg/m3 B) 0.750 kg/m3 C) 0.980 kg/m3 D) 1.098 kg/m3 E) 1.103 kg/m3 A) 0.680 kg/m3 B) 0.750 kg/m3 C) 0.980 kg/m3 D) 1.098 kg/m3 E) 1.103 kg/m3

A 100 kg mass has a density of 2,000 kg/m3. If the volume is decreased by 2% due to compression, then the density is

A) 3,011 kg/m3. B) 2,940 kg/m3. C) 2,522 kg/m3. D) 2,440 kg/m3. E) 2,041 kg/m3. A) 3,011 kg/m3. B) 2,940 kg/m3. C) 2,522 kg/m3. D) 2,440 kg/m3. E) 2,041 kg/m3.

Exam 9: Fluids | Examlex

A 120 kg scuba diver with tanks and equipment is submerged and floating underwater in seawater (density 1.025 g/cm3). The volume of the seawater displaced by the scuba diver with tanks and equipment is

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Question 21

A 1.10 kg hollow steel ball is submerged in water. Its weight in water is 8.75 N. The volume of the cavity inside the ball is (density of steel is 7,900 kg/m³)

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Question 22

An incompressible fluid is flowing through a vertical pipe with a constriction. The wide section is 2.00 cm in diameter and is at the top of the pipe. The pressure of the fluid in the wide section at the top is 200 kPa. The velocity of the fluid in the wide section is 4.00 m/s. The narrow section is located 4.00 m below the wide section. What is the diameter of the narrow section for the pressure of the fluid in the narrow section to equal the pressure in the wide section? (density of the fluid is 1,000 kg/m³)

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Question 23

A sphere is made up of two layers: The first is lead (density 11,340 kg/m³) and is of radius R. The second is tin, (7,310 kg/m³) and is concentric with the first, from radius R to radius 2R. The sphere is placed in a pool of mercury (density 13,600 kg/m³). How much of the volume of the sphere is below the surface?

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Question 24

The water level in a water tower is 50.00 m above the ground. What is the gauge pressure of the water at a faucet that is 2.000 m above the ground?

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Question 25

The surface tension of water is 0.0730 N/m. What is the height of the water in a capillary tube of diameter 1.00 mm?

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Question 26

Air with a density of 1.20 kg/m³ flows through a 10.0 cm diameter pipe with a velocity of 1.20 m/s. What is the mass flow rate?

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Question 27

An incompressible fluid is flowing through a vertical pipe with a constriction. The wide section is 2.00 cm in diameter and is at the top of the pipe. The pressure of the fluid in the wide section at the top is 200 kPa. The velocity of the fluid in the wide section is 4.00 m/s. The narrow section is 1.00 cm in diameter and is located 2.00 m below the wide section. What is the pressure of the fluid in the narrow section? (density of the fluid is 1,000 kg/m³)

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Question 28

A U-shaped manometer, filled with a liquid of unknown density, is connected on one side to a vessel containing gas at gauge pressure 10.0 kPa, and the other side is open to the atmosphere (pressure 101.3 kPa). The level of the liquid in the side connected to the gas vessel is lower than on the open side. The difference in height between the two sides is 10 cm. What is the density of the liquid in the manometer?

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Question 29

An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 30.0 degrees. The narrow section is 10.0 m from the wide section and the narrow section is higher than the wide section. The velocity of the fluid in the wide section of the pipe is 4.00 m/s. The diameter of the wide section is 12.00 cm and the diameter of the narrow section is 9.00 cm. The pressure of the fluid in the wide section is 250 kPa. What is the pressure in the narrow section of the pipe? (density of the fluid is 1,000 kg/m³)

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Question 30

A 90.0 kg scuba diver with tanks and equipment is submerged and floating underwater in seawater (density 1.025 g/cm3). The volume of the seawater displaced by the scuba diver with tanks and equipment is

(Multiple Choice)

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Question 31

A ball with a diameter of 20.00 cm is placed in water with 75% of its volume above the surface of the water. The buoyant force of the water on the ball is

(Multiple Choice)

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Question 32

Water undergoes viscous flow through two pipes with the same pressure difference between the ends. Pipe 1 has three times the diameter and twice the length of pipe 2. If the flow rate through pipe 1 is 0.400 cm³/s, then what is the flow rate through pipe 2?

(Multiple Choice)

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Question 33

A force of 120.0 N is applied to 2.000 cm diameter piston, which is in contact with a closed container of water (density of water = 1,000 kg/m³). A second piston, with a diameter of 25.00 cm and at the same height as the first piston, is also in contact with the water. What force does the water pressure exert on the second piston?

(Multiple Choice)

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Question 34

A mercury manometer measures a pressure of 200.0 mmHg. What is this pressure in Pa?

(Multiple Choice)

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Question 35

An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 20.0 degrees. The narrow section is 15.0 m from the wide section and the narrow section is lower than the wide section. The velocity of the fluid in the wide section of the pipe is 6.00 m/s and the velocity of the fluid in the narrow section of pipe is 9.00 m/s. The pressure of the fluid in the wide section is 250 kPa. What is the pressure in the narrow section of the pipe? (density of the fluid is 1,000 kg/m³)

(Multiple Choice)

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Question 36

A mercury manometer measures a pressure of 150 mmHg. What is this pressure in kPa?

(Multiple Choice)

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Question 37

What is the density of a mixture of 90% air (density air 1.20 kg/m³) and 10% helium (density of 0.180 kg/m³)?

(Multiple Choice)

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(72)

Question 38

An incompressible fluid is flowing through a horizontal pipe with a constriction. The velocity of the fluid in the wide section of the pipe is 6.00 m/s and the velocity of the fluid in the narrow section of pipe is 8.00 m/s. The pressure of the fluid in the wide section is 250 kPa. What is the pressure in the narrow section of the pipe? (density of the fluid is 1,000 kg/m³)

(Multiple Choice)

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Question 39

A 100 kg mass has a density of 2,000 kg/m³. If the volume is decreased by 2% due to compression, then the density is

(Multiple Choice)

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Question 40

Showing 21 - 40 of 88

Exam 9: Fluids

A 120 kg scuba diver with tanks and equipment is submerged and floating underwater in seawater (density 1.025 g/cm3). The volume of the seawater displaced by the scuba diver with tanks and equipment is

A 1.10 kg hollow steel ball is submerged in water. Its weight in water is 8.75 N. The volume of the cavity inside the ball is (density of steel is 7,900 kg/m3)

The water level in a water tower is 50.00 m above the ground. What is the gauge pressure of the water at a faucet that is 2.000 m above the ground?

The surface tension of water is 0.0730 N/m. What is the height of the water in a capillary tube of diameter 1.00 mm?

Air with a density of 1.20 kg/m3 flows through a 10.0 cm diameter pipe with a velocity of 1.20 m/s. What is the mass flow rate?

A 90.0 kg scuba diver with tanks and equipment is submerged and floating underwater in seawater (density 1.025 g/cm3). The volume of the seawater displaced by the scuba diver with tanks and equipment is

A ball with a diameter of 20.00 cm is placed in water with 75% of its volume above the surface of the water. The buoyant force of the water on the ball is

Water undergoes viscous flow through two pipes with the same pressure difference between the ends. Pipe 1 has three times the diameter and twice the length of pipe 2. If the flow rate through pipe 1 is 0.400 cm3/s, then what is the flow rate through pipe 2?

A mercury manometer measures a pressure of 200.0 mmHg. What is this pressure in Pa?

A mercury manometer measures a pressure of 150 mmHg. What is this pressure in kPa?

What is the density of a mixture of 90% air (density air 1.20 kg/m3) and 10% helium (density of 0.180 kg/m3)?

A 100 kg mass has a density of 2,000 kg/m3. If the volume is decreased by 2% due to compression, then the density is

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A 1.10 kg hollow steel ball is submerged in water. Its weight in water is 8.75 N. The volume of the cavity inside the ball is (density of steel is 7,900 kg/m³)

Air with a density of 1.20 kg/m³ flows through a 10.0 cm diameter pipe with a velocity of 1.20 m/s. What is the mass flow rate?

Water undergoes viscous flow through two pipes with the same pressure difference between the ends. Pipe 1 has three times the diameter and twice the length of pipe 2. If the flow rate through pipe 1 is 0.400 cm³/s, then what is the flow rate through pipe 2?

What is the density of a mixture of 90% air (density air 1.20 kg/m³) and 10% helium (density of 0.180 kg/m³)?

A 100 kg mass has a density of 2,000 kg/m³. If the volume is decreased by 2% due to compression, then the density is