Substance A has a density of 3.0 g/cm3 and substance B has a density of 4.0 g/cm3. In order to obtain equal masses of these two substances, the ratio of the volume of A to the volume of B will be equal to

A) 1:3. B) 4:3. C) 3:4. D) 1:4. E) 4:1. A) 1:3. B) 4:3. C) 3:4. D) 1:4. E) 4:1.

The bathyscaphe Trieste consists of a cylindrical hull, 15.2 m long and 3.66 m in diameter, filled with gasoline with a density of 880 kg/m3 to make it buoyant. If it is totally submerged in salt water with a density of 1025 kg/m3 and neither rising nor sinking, what is the weight of the craft?

A) 127 kN B) 227 kN C) 327 kN D) 427 kN E) 527 kN A) 127 kN B) 227 kN C) 327 kN D) 427 kN E) 527 kN

Exam 15: Fluids

FIGURE 15-12 -Water flows in the vertical pipe shown in Figure 15-12. At A the diameter is 5.00 cm and at B the diameter is 4.00 cm. The fluid in the manometer is mercury, which has a density of 13,600 kg/m³. The manometer reading h is 4.50 cm. What volume of water is flowing through the pipe per second?

(Multiple Choice)

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Question 21

The upward pressure on the bottom surface of a submerged object is less than the downward pressure on its top surface.

(True/False)

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Question 22

FIGURE 15-5 -A reservoir manometer consists of a U-tube in which the two arms have different diameters, as shown in Figure 15-5. The diameter on the narrow side is 10.0 mm and the diameter on the reservoir side is 25.0 mm. The liquid in the manometer is oil with a density of 830 kg/m³ and the fluids in contact with the oil are gases of negligible density. The dotted line indicates the level of the oil when the pressures p₁ and p₂ are equal. What is the value of h when p₁ - p₂= 1000 Pa?

(Multiple Choice)

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Question 23

State Archimedes' Principle.

(Essay)

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Question 24

Substance A has a density of 3.0 g/cm³ and substance B has a density of 4.0 g/cm³. In order to obtain equal masses of these two substances, the ratio of the volume of A to the volume of B will be equal to

(Multiple Choice)

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Question 25

"An external pressure applied to an enclosed fluid is transmitted unchanged to every point within the fluid" is known as

(Multiple Choice)

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Question 26

When you blow some air above a paper strip, the paper rises. This is because

(Multiple Choice)

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Question 27

The lift on an airplane wing is an application of

(Multiple Choice)

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Question 28

The small piston of a hydraulic lift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 15,000 N. (a) Determine the force that must be applied to the small piston. (b) Determine the pressure applied to the fluid in the lift.

(Short Answer)

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Question 29

The bathyscaphe Trieste consists of a cylindrical hull, 15.2 m long and 3.66 m in diameter, filled with gasoline with a density of 880 kg/m³ to make it buoyant. If it is totally submerged in salt water with a density of 1025 kg/m³ and neither rising nor sinking, what is the weight of the craft?

(Multiple Choice)

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Question 30

Glycerin, with a viscosity of 1.50 Ns/m², is flowing with an average speed of 1.20 m/s through a tube that has a radius of 5.00 mm and is 25.0 cm long. What is the drop in pressure?

(Multiple Choice)

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Question 31

How a ship floats is described in terms of

(Multiple Choice)

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Question 32

FIGURE 15-13 -Water flows in the vertical pipe shown in Figure 15-13. At A the area is 25.0 cm² and the speed of the water is 0.750 m/s. At B the area is 16.0 cm². The fluid in the manometer is oil, which has a density of 800 kg/m³. What is the manometer reading h?

(Multiple Choice)

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Question 33

The hydraulic lift is an application of

(Multiple Choice)

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Question 34

A flask of water rests on a scale. If you dip your finger into the water, without touching the flask, the reading on the scale will

(Multiple Choice)

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Question 35

FIGURE 15-11 -Water flows in the horizontal pipe shown in Figure 15-11. At A the diameter is 6.00 cm and at B the diameter is 5.00 cm. The fluid in the manometer is oil, which has a density of 800 kg/m³. The manometer reading h is 9.00 cm. What volume of water is flowing through the pipe per second?

(Multiple Choice)

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Question 36

At any depth in a fluid at rest, the pressure is the same in all directions at the given depth.

(True/False)

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Question 37

FIGURE 15-6 -The two water reservoirs shown in Figure 15-6 are open to the atmosphere. The manometer contains mercury with a density of 13,600 kg/m³. What is the difference in elevation h if the manometer reading m is25.0 cm?

(Multiple Choice)

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Question 38

The circular pipes shown in Figure 15-4 both contain water, but there is a pressure difference between them, (P_B - P_A) = 1000 Pa. They are connected by means of an upside-down U-tube, which contains oil with a density of 800 kg/m³. The heights are: h_A = 5.0 cm and h_B = 40.0 cm. What is h_C?

(Multiple Choice)

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Question 39

The fact that a pin placed carefully on the surface of the water can remain there without sinking is best explained by

(Multiple Choice)

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Question 40

Showing 21 - 40 of 107

Exam 15: Fluids

The upward pressure on the bottom surface of a submerged object is less than the downward pressure on its top surface.

State Archimedes' Principle.

Substance A has a density of 3.0 g/cm3 and substance B has a density of 4.0 g/cm3. In order to obtain equal masses of these two substances, the ratio of the volume of A to the volume of B will be equal to

"An external pressure applied to an enclosed fluid is transmitted unchanged to every point within the fluid" is known as

When you blow some air above a paper strip, the paper rises. This is because

The lift on an airplane wing is an application of

The small piston of a hydraulic lift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 15,000 N. (a) Determine the force that must be applied to the small piston. (b) Determine the pressure applied to the fluid in the lift.

The bathyscaphe Trieste consists of a cylindrical hull, 15.2 m long and 3.66 m in diameter, filled with gasoline with a density of 880 kg/m3 to make it buoyant. If it is totally submerged in salt water with a density of 1025 kg/m3 and neither rising nor sinking, what is the weight of the craft?

Glycerin, with a viscosity of 1.50 Ns/m2, is flowing with an average speed of 1.20 m/s through a tube that has a radius of 5.00 mm and is 25.0 cm long. What is the drop in pressure?

How a ship floats is described in terms of

FIGURE 15-13 -Water flows in the vertical pipe shown in Figure 15-13. At A the area is 25.0 cm2 and the speed of the water is 0.750 m/s. At B the area is 16.0 cm2. The fluid in the manometer is oil, which has a density of 800 kg/m3. What is the manometer reading h?

The hydraulic lift is an application of

A flask of water rests on a scale. If you dip your finger into the water, without touching the flask, the reading on the scale will

At any depth in a fluid at rest, the pressure is the same in all directions at the given depth.

FIGURE 15-6 -The two water reservoirs shown in Figure 15-6 are open to the atmosphere. The manometer contains mercury with a density of 13,600 kg/m3. What is the difference in elevation h if the manometer reading m is25.0 cm?

The circular pipes shown in Figure 15-4 both contain water, but there is a pressure difference between them, (PB - PA) = 1000 Pa. They are connected by means of an upside-down U-tube, which contains oil with a density of 800 kg/m3. The heights are: hA = 5.0 cm and hB = 40.0 cm. What is hC?

The fact that a pin placed carefully on the surface of the water can remain there without sinking is best explained by

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Substance A has a density of 3.0 g/cm³ and substance B has a density of 4.0 g/cm³. In order to obtain equal masses of these two substances, the ratio of the volume of A to the volume of B will be equal to

The bathyscaphe Trieste consists of a cylindrical hull, 15.2 m long and 3.66 m in diameter, filled with gasoline with a density of 880 kg/m³ to make it buoyant. If it is totally submerged in salt water with a density of 1025 kg/m³ and neither rising nor sinking, what is the weight of the craft?

Glycerin, with a viscosity of 1.50 Ns/m², is flowing with an average speed of 1.20 m/s through a tube that has a radius of 5.00 mm and is 25.0 cm long. What is the drop in pressure?

FIGURE 15-13 -Water flows in the vertical pipe shown in Figure 15-13. At A the area is 25.0 cm² and the speed of the water is 0.750 m/s. At B the area is 16.0 cm². The fluid in the manometer is oil, which has a density of 800 kg/m³. What is the manometer reading h?

FIGURE 15-6 -The two water reservoirs shown in Figure 15-6 are open to the atmosphere. The manometer contains mercury with a density of 13,600 kg/m³. What is the difference in elevation h if the manometer reading m is25.0 cm?

The circular pipes shown in Figure 15-4 both contain water, but there is a pressure difference between them, (P_B - P_A) = 1000 Pa. They are connected by means of an upside-down U-tube, which contains oil with a density of 800 kg/m³. The heights are: h_A = 5.0 cm and h_B = 40.0 cm. What is h_C?