An open U-tube has water to a height h on both sides, as shown. The cross-sectional area of the left-hand tube is A1 = 1.50 cm2, and that of the right-hand tube is A2 = 0.50 cm2. A light oil (which does not mix with water) with a density of 0.83 g/cm3 is added to the right-hand side. When equilibrium is reached, which of the following is correct?

A) The level on the right-hand side is higher than that on the left. B) The level on the right-hand side is lower than that on the left. C) The levels of the two sides are the same. D) The difference in the heights depends on A1 and A2. E) None of these is correct. A) The level on the right-hand side is higher than that on the left. B) The level on the right-hand side is lower than that on the left. C) The levels of the two sides are the same. D) The difference in the heights depends on A1 and A2. E) None of these is correct.

Sea water of density 1.03 $\times$103 kg/m3 is in streamline flow through a Venturi meter. The cross-sectional areas of the main pipe and the constriction are 0.139 m2 and 0.0464 m2, respectively, and the pressure difference between the two portions is 55.2 kPa. The velocity of flow in the main pipe is

A) 0.305 m/s B) 1.73 m/s C) 3.66 m/s D) 11.0 m/s E) 20.7 m/s A) 0.305 m/s B) 1.73 m/s C) 3.66 m/s D) 11.0 m/s E) 20.7 m/s

Using a motion sensor, Sean finds that the acceleration of a 2-kg rock that has been dropped from the roof of a building is 5.5 m/s2. He concludes that the magnitude of force of air resistance acting on the rock is approximately

A) 19.6 N B) 11.0 N C) 9.81 N D) 6.62 N E) None of these is correct. A) 19.6 N B) 11.0 N C) 9.81 N D) 6.62 N E) None of these is correct.

Using a motion sensor, Susana finds that the acceleration of a 4-kg rock that has been dropped from the roof of a building is 6 m/s2. She concludes that the magnitude of force of air resistance acting on the rock is approximately

A) 39.2 N B) 24.0 N C) 15.2 N D) 9.81 N E) None of these is correct. A) 39.2 N B) 24.0 N C) 15.2 N D) 9.81 N E) None of these is correct.

Exam 13: Fluids

Use the figure to the right to answer the next problems. A beaker is filled with water. A small plastic container contains a solid bar of aluminum, which has a mass of 40 g, and is placed on the water so that it floats. The water level reads 60 ml. Next, the bar of aluminum is taken out of the container and placed in the water so that it sinks to the bottom. -The water level in the beaker _____

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Question 41

Bernoulli's equation for nonviscous flow can be stated as P₁ + $\rho$ gy₁ + $Bernoulli's equation for nonviscous flow can be stated as P1 + \rho gy1 + \rho v12 = P2 + \rho gy2 + \rho v22 A fluid is flowing through a horizontal tube that changes in cross-sectional area from A1= 0.75 cm2 to A2 = 0.030 cm2. When v1 = 3.5 cm/s, \rho = 1.4 g/cm3, and viscosity is neglected, the difference between pressure P2 at A2 and P1 at A1 is$ $\rho$ v₁2 = P₂ + $\rho$ gy₂ + $Bernoulli's equation for nonviscous flow can be stated as P1 + \rho gy1 + \rho v12 = P2 + \rho gy2 + \rho v22 A fluid is flowing through a horizontal tube that changes in cross-sectional area from A1= 0.75 cm2 to A2 = 0.030 cm2. When v1 = 3.5 cm/s, \rho = 1.4 g/cm3, and viscosity is neglected, the difference between pressure P2 at A2 and P1 at A1 is$ $\rho$ v₂2 A fluid is flowing through a horizontal tube that changes in cross-sectional area from A₁= 0.75 cm² to A₂ = 0.030 cm². $Bernoulli's equation for nonviscous flow can be stated as P1 + \rho gy1 + \rho v12 = P2 + \rho gy2 + \rho v22 A fluid is flowing through a horizontal tube that changes in cross-sectional area from A1= 0.75 cm2 to A2 = 0.030 cm2. When v1 = 3.5 cm/s, \rho = 1.4 g/cm3, and viscosity is neglected, the difference between pressure P2 at A2 and P1 at A1 is$ When v₁ = 3.5 cm/s, $\rho$ = 1.4 g/cm³, and viscosity is neglected, the difference between pressure P₂ at A₂ and P₁ at A₁ is

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Question 42

A rock is thrown into a swimming pool that is filled with water at a uniform temperature. Which of the following statements is true?

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Question 43

Which of the following is the mass density of a material?

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Question 44

The left-hand side of an open U-tube has a radius r₁ = 0.82 cm, and the right-hand side has a radius r₂ = 0.41 cm. Mercury and oil are poured into the U-tube. The density of mercury is 13.6 g/cm³. The heights shown in the diagram are h₁ = 3.50 cm and h₂ = 57.3 cm. The density of the oil is approximately

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Question 45

The figure represents the streamline flow of an incompressible fluid. Which of the following statements is true of the velocity and/or pressure at the indicated points?

(Multiple Choice)

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Question 46

An open U-tube has water to a height h on both sides, as shown. The cross-sectional area of the left-hand tube is A₁ = 1.50 cm², and that of the right-hand tube is A₂ = 0.50 cm². A light oil (which does not mix with water) with a density of 0.83 g/cm³ is added to the right-hand side. When equilibrium is reached, which of the following is correct?

(Multiple Choice)

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Question 47

A small sphere of wood with a density $\rho$ = 0.40 g/cm³ is held at rest well under the surface of a pool of water. The magnitude of the initial acceleration of the sphere when it is released is

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Question 48

A small portion of an incompressible liquid in steady flow through a pipe of variable cross section, if friction is negligible, has at each point throughout its path a constant

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Question 49

Sea water of density 1.03 $\times$ 10³ kg/m³ is in streamline flow through a Venturi meter. The cross-sectional areas of the main pipe and the constriction are 0.139 m² and 0.0464 m², respectively, and the pressure difference between the two portions is 55.2 kPa. The velocity of flow in the main pipe is

(Multiple Choice)

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Question 50

If the gauge pressure is doubled, the absolute pressure is

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Question 51

The vessels in the figure contain liquids of the same density. The vessel that has the greatest pressure at its base is

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Question 52

Sea water of density 1.03 $\times$ 10³ kg/m³ is in streamline flow through a Venturi meter. The pressure difference between the main pipe and the constriction is 20.7 kPa, and the flow velocity in the constriction is 7.32 m/s. The flow velocity in the main pipe is

(Multiple Choice)

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Question 53

A horizontal pipe narrows from a diameter of 10 to 5 cm. For a nonviscous fluid flowing from the larger diameter to the smaller,

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Question 54

A hurricane strength wind is blowing past a wooden box-shaped shack with its door and windows shut. Which one of the following statements is true?

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Question 55

A penny has a mass of 3.0 g, a diameter of 1.9 cm, and a thickness of 0.15 cm. What is the density of the metal of which it is made?

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Question 56

Using a motion sensor, Sean finds that the acceleration of a 2-kg rock that has been dropped from the roof of a building is 5.5 m/s². He concludes that the magnitude of force of air resistance acting on the rock is approximately

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Question 57

A hurricane strength wind is blowing at a speed of 100 km/hr over a flat square roof of 10 m per side. Assuming the inside of the house to be at 1 atm pressure and the density of air is 1.3 kg/m³, calculate the lifting force on the roof.

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Question 58

Water flows through the pipe shown in the figure. The pressure

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Question 59

Using a motion sensor, Susana finds that the acceleration of a 4-kg rock that has been dropped from the roof of a building is 6 m/s². She concludes that the magnitude of force of air resistance acting on the rock is approximately

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Question 60

Showing 41 - 60 of 91

A rock is thrown into a swimming pool that is filled with water at a uniform temperature. Which of the following statements is true?

Which of the following is the mass density of a material?

The figure represents the streamline flow of an incompressible fluid. Which of the following statements is true of the velocity and/or pressure at the indicated points?

A small sphere of wood with a density $\rho$ = 0.40 g/cm³ is held at rest well under the surface of a pool of water. The magnitude of the initial acceleration of the sphere when it is released is

A small portion of an incompressible liquid in steady flow through a pipe of variable cross section, if friction is negligible, has at each point throughout its path a constant

If the gauge pressure is doubled, the absolute pressure is

The vessels in the figure contain liquids of the same density. The vessel that has the greatest pressure at its base is

Sea water of density 1.03 $\times$ 10³ kg/m³ is in streamline flow through a Venturi meter. The pressure difference between the main pipe and the constriction is 20.7 kPa, and the flow velocity in the constriction is 7.32 m/s. The flow velocity in the main pipe is

A horizontal pipe narrows from a diameter of 10 to 5 cm. For a nonviscous fluid flowing from the larger diameter to the smaller,

A hurricane strength wind is blowing past a wooden box-shaped shack with its door and windows shut. Which one of the following statements is true?

A penny has a mass of 3.0 g, a diameter of 1.9 cm, and a thickness of 0.15 cm. What is the density of the metal of which it is made?

Using a motion sensor, Sean finds that the acceleration of a 2-kg rock that has been dropped from the roof of a building is 5.5 m/s². He concludes that the magnitude of force of air resistance acting on the rock is approximately

A hurricane strength wind is blowing at a speed of 100 km/hr over a flat square roof of 10 m per side. Assuming the inside of the house to be at 1 atm pressure and the density of air is 1.3 kg/m³, calculate the lifting force on the roof.

Water flows through the pipe shown in the figure. The pressure

Using a motion sensor, Susana finds that the acceleration of a 4-kg rock that has been dropped from the roof of a building is 6 m/s². She concludes that the magnitude of force of air resistance acting on the rock is approximately

Systems of Measurement

Motion in One Dimension

Motion in Two and Three Dimensions

Newtons Laws

Applications of Newtons Laws

Work and Energy

Conservation of Energy

Systems of Particles and Conservation of Linear Momentum

Rotation

Conservation of Angular Momentum

Gravity

Static Equilibrium and Elasticity

Oscillations

Wave Motion

Superposition and Standing Waves

Temperature and the Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

The Second Law of Thermodynamics

Thermal Properties and Processes

Filters

Exam 13: Fluids

A rock is thrown into a swimming pool that is filled with water at a uniform temperature. Which of the following statements is true?

Which of the following is the mass density of a material?

The figure represents the streamline flow of an incompressible fluid. Which of the following statements is true of the velocity and/or pressure at the indicated points?

A small sphere of wood with a density ρ\rhoρ = 0.40 g/cm3 is held at rest well under the surface of a pool of water. The magnitude of the initial acceleration of the sphere when it is released is

A small portion of an incompressible liquid in steady flow through a pipe of variable cross section, if friction is negligible, has at each point throughout its path a constant

If the gauge pressure is doubled, the absolute pressure is

The vessels in the figure contain liquids of the same density. The vessel that has the greatest pressure at its base is

Sea water of density 1.03 ×\times× 103 kg/m3 is in streamline flow through a Venturi meter. The pressure difference between the main pipe and the constriction is 20.7 kPa, and the flow velocity in the constriction is 7.32 m/s. The flow velocity in the main pipe is

A horizontal pipe narrows from a diameter of 10 to 5 cm. For a nonviscous fluid flowing from the larger diameter to the smaller,

A hurricane strength wind is blowing past a wooden box-shaped shack with its door and windows shut. Which one of the following statements is true?

A penny has a mass of 3.0 g, a diameter of 1.9 cm, and a thickness of 0.15 cm. What is the density of the metal of which it is made?

Using a motion sensor, Sean finds that the acceleration of a 2-kg rock that has been dropped from the roof of a building is 5.5 m/s2. He concludes that the magnitude of force of air resistance acting on the rock is approximately

A hurricane strength wind is blowing at a speed of 100 km/hr over a flat square roof of 10 m per side. Assuming the inside of the house to be at 1 atm pressure and the density of air is 1.3 kg/m3, calculate the lifting force on the roof.

Water flows through the pipe shown in the figure. The pressure

Using a motion sensor, Susana finds that the acceleration of a 4-kg rock that has been dropped from the roof of a building is 6 m/s2. She concludes that the magnitude of force of air resistance acting on the rock is approximately

Systems of Measurement

Motion in One Dimension

Motion in Two and Three Dimensions

Newtons Laws

Applications of Newtons Laws

Work and Energy

Conservation of Energy

Systems of Particles and Conservation of Linear Momentum

Rotation

Conservation of Angular Momentum

Gravity

Static Equilibrium and Elasticity

Oscillations

Wave Motion

Superposition and Standing Waves

Temperature and the Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

The Second Law of Thermodynamics

Thermal Properties and Processes

Filters

A small sphere of wood with a density $\rho$ = 0.40 g/cm³ is held at rest well under the surface of a pool of water. The magnitude of the initial acceleration of the sphere when it is released is

Sea water of density 1.03 $\times$ 10³ kg/m³ is in streamline flow through a Venturi meter. The pressure difference between the main pipe and the constriction is 20.7 kPa, and the flow velocity in the constriction is 7.32 m/s. The flow velocity in the main pipe is

Using a motion sensor, Sean finds that the acceleration of a 2-kg rock that has been dropped from the roof of a building is 5.5 m/s². He concludes that the magnitude of force of air resistance acting on the rock is approximately

A hurricane strength wind is blowing at a speed of 100 km/hr over a flat square roof of 10 m per side. Assuming the inside of the house to be at 1 atm pressure and the density of air is 1.3 kg/m³, calculate the lifting force on the roof.

Using a motion sensor, Susana finds that the acceleration of a 4-kg rock that has been dropped from the roof of a building is 6 m/s². She concludes that the magnitude of force of air resistance acting on the rock is approximately