An ideal fluid,of density 0.90 × 103 kg/m3,flows at 5.0 m/s through a level pipe with radius of 0.5 cm.The pressure in the fluid is 1.3 × 105 N/m2.This pipe connects to a second level pipe,with radius of 1.4 cm.Find the speed of flow in the second pipe.

A) 39.2 m/s B) 1.79 m/s C) 0.64 m/s D) 14 m/s E) 5.13 m/s A) 39.2 m/s B) 1.79 m/s C) 0.64 m/s D) 14 m/s E) 5.13 m/s

In order to overcome a surface tension of a fluid,a force of 1.34 × 10−2 N is required to lift a wire ring of circumference 12.0 cm.What is the surface tension of the fluid?

A) 0.056 N/m B) 0.112 N/m C) 0.556 N/m D) 5.583 N/m E) 16.08 N/m A) 0.056 N/m B) 0.112 N/m C) 0.556 N/m D) 5.583 N/m E) 16.08 N/m

What is the total mass of the Earth's atmosphere? (The radius of the Earth is 6.4 × 106 m,and atmospheric pressure at the surface is 105 N/m2. )

A) 5 × 1016 kg B) 1 × 1018 kg C) 5 × 1018 kg D) 1 × 1020 kg A) 5 × 1016 kg B) 1 × 1018 kg C) 5 × 1018 kg D) 1 × 1020 kg

The flow rate of a liquid through a 4.0-cm-radius pipe is 0.0070 m3/s.The average fluid speed in the pipe is:

A) 0.04 m/s. B) 0.005 m/s. C) 0.14 m/s. D) 1.4 m/s. E) 14 m/s. A) 0.04 m/s. B) 0.005 m/s. C) 0.14 m/s. D) 1.4 m/s. E) 14 m/s.

A copper wire of length 5.0 m,cross sectional area 7.5 × 10−6 m2 and Young's modulus 11 × 1010 N/m2 has a 190-kg load hung on it.What is its increase in length? (g = 9.8 m/s2)

A) 0.50 mm B) 11.7 mm C) 10.9 mm D) 11.3 mm E) 22.6 mm A) 0.50 mm B) 11.7 mm C) 10.9 mm D) 11.3 mm E) 22.6 mm

Exam 9: Solids and Fluids

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An ideal fluid,of density 0.90 × 10³ kg/m³,flows at 5.0 m/s through a level pipe with radius of 0.5 cm.The pressure in the fluid is 1.3 × 10⁵ N/m².This pipe connects to a second level pipe,with radius of 1.4 cm.Find the speed of flow in the second pipe.

(Multiple Choice)

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Question 21

Consider two steel rods,A and B.B has three times the area and twice the length of A,so Young's modulus for B will be what factor times Young's modulus for A?

(Multiple Choice)

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Question 22

Water is being sprayed from a nozzle at the end of a garden hose of diameter 2.0 cm.If the nozzle has an opening of diameter 1.0 cm,and if the water leaves the nozzle at a speed of 12 m/s,what is the speed of the water inside the hose?

(Multiple Choice)

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Question 23

It takes 2.5 minutes to fill a gas tank with 50 liters of gasoline.If the pump nozzle is 2.0 cm in radius,what is the average speed of the gasoline as it leaves the nozzle? (1 000 liters = one cubic meter)

(Multiple Choice)

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Question 24

A pipe carrying water has a radius of 1.0 cm.If the flow velocity is 9.0 cm/s,which of the following characterizes the flow? Take the viscosity of water to be 1.0 × 10−³ N⋅s/m.

(Multiple Choice)

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Question 25

A fountain sends water to a height of 100 m.What must be the pressurization (above atmospheric)of the underground water system? (1 atm = 10⁵ N/m²)

(Multiple Choice)

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Question 26

In order to overcome a surface tension of a fluid,a force of 1.34 × 10−² N is required to lift a wire ring of circumference 12.0 cm.What is the surface tension of the fluid?

(Multiple Choice)

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Question 27

When an artery gets a constricted region due to plaque,how does the pressure in this region compare to the pressure in an unconstricted region adjacent?

(Multiple Choice)

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Question 28

An ice cube with a small solid steel sphere frozen inside floats in a glass of water filled to the brim.What happens to the level of water in the glass as a result of the ice melting?

(Multiple Choice)

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Question 29

What is the total mass of the Earth's atmosphere? (The radius of the Earth is 6.4 × 10⁶ m,and atmospheric pressure at the surface is 10⁵ N/m². )

(Multiple Choice)

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Question 30

The flow rate of a liquid through a 4.0-cm-radius pipe is 0.0070 m³/s.The average fluid speed in the pipe is:

(Multiple Choice)

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Question 31

The quantity "stress" expressed in terms of the fundamental quantities (mass,length,time)is equivalent to:

(Multiple Choice)

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Question 32

A heavily loaded boat is floating in a pond.The boat starts to sink because of a leak but quick action plugging the leak stops the boat from going under although it is now deeper in the water.What happens to the surface level of the pond?

(Multiple Choice)

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Question 33

The bottom of a flat-bottomed aluminum boat has an area of 4.4 m² and the boat's mass is 62 kg.When set afloat in water,how far below the water surface is the boat bottom? (water density = 1.0 × 10³ kg/m³)

(Multiple Choice)

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Question 34

What volume of water is displaced by a submerged 2.5-kg cylinder made of solid aluminum? (aluminum density = 2.7 × 10³ kg/m³ and water density = 1.0 × 10³ kg/m³)

(Multiple Choice)

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Question 35

Air pressure is 1.0 × 10⁵ N/m²,air density is 1.3 kg/m³,and the density of soft drinks is 1.0 × 10³ kg/m³.If one blows carefully across the top of a straw sticking up 0.130 m from the liquid in a soft drink can,it is possible to make the soft drink rise half way up the straw and stay there.How fast must the air be blown across the top of the straw?

(Multiple Choice)

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Question 36

A centrifuge rotates at 100 rev/s (i.e. ,628 rad/s).If the test tube places the suspension at 8.0 cm from the axis of rotation,by what factor are the terminal speeds of the settling particles increased as compared to sedimentation cause by gravity?

(Multiple Choice)

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Question 37

A tire stops a car by use of friction.What modulus should we use to calculate the stress and strain on the tire?

(Multiple Choice)

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Question 38

A copper wire of length 5.0 m,cross sectional area 7.5 × 10−⁶ m² and Young's modulus 11 × 10¹⁰ N/m² has a 190-kg load hung on it.What is its increase in length? (g = 9.8 m/s²)

(Multiple Choice)

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Question 39

Bar One has a Young's modulus that is bigger than that of Bar Two.This indicates Bar One:

(Multiple Choice)

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Question 40

Showing 21 - 40 of 78

Exam 9: Solids and Fluids

An ideal fluid,of density 0.90 × 103 kg/m3,flows at 5.0 m/s through a level pipe with radius of 0.5 cm.The pressure in the fluid is 1.3 × 105 N/m2.This pipe connects to a second level pipe,with radius of 1.4 cm.Find the speed of flow in the second pipe.

Consider two steel rods,A and B.B has three times the area and twice the length of A,so Young's modulus for B will be what factor times Young's modulus for A?

Water is being sprayed from a nozzle at the end of a garden hose of diameter 2.0 cm.If the nozzle has an opening of diameter 1.0 cm,and if the water leaves the nozzle at a speed of 12 m/s,what is the speed of the water inside the hose?

It takes 2.5 minutes to fill a gas tank with 50 liters of gasoline.If the pump nozzle is 2.0 cm in radius,what is the average speed of the gasoline as it leaves the nozzle? (1 000 liters = one cubic meter)

A pipe carrying water has a radius of 1.0 cm.If the flow velocity is 9.0 cm/s,which of the following characterizes the flow? Take the viscosity of water to be 1.0 × 10−3 N⋅s/m.

A fountain sends water to a height of 100 m.What must be the pressurization (above atmospheric)of the underground water system? (1 atm = 105 N/m2)

In order to overcome a surface tension of a fluid,a force of 1.34 × 10−2 N is required to lift a wire ring of circumference 12.0 cm.What is the surface tension of the fluid?

When an artery gets a constricted region due to plaque,how does the pressure in this region compare to the pressure in an unconstricted region adjacent?

An ice cube with a small solid steel sphere frozen inside floats in a glass of water filled to the brim.What happens to the level of water in the glass as a result of the ice melting?

What is the total mass of the Earth's atmosphere? (The radius of the Earth is 6.4 × 106 m,and atmospheric pressure at the surface is 105 N/m2. )

The flow rate of a liquid through a 4.0-cm-radius pipe is 0.0070 m3/s.The average fluid speed in the pipe is:

The quantity "stress" expressed in terms of the fundamental quantities (mass,length,time)is equivalent to:

A heavily loaded boat is floating in a pond.The boat starts to sink because of a leak but quick action plugging the leak stops the boat from going under although it is now deeper in the water.What happens to the surface level of the pond?

The bottom of a flat-bottomed aluminum boat has an area of 4.4 m2 and the boat's mass is 62 kg.When set afloat in water,how far below the water surface is the boat bottom? (water density = 1.0 × 103 kg/m3)

What volume of water is displaced by a submerged 2.5-kg cylinder made of solid aluminum? (aluminum density = 2.7 × 103 kg/m3 and water density = 1.0 × 103 kg/m3)

A centrifuge rotates at 100 rev/s (i.e. ,628 rad/s).If the test tube places the suspension at 8.0 cm from the axis of rotation,by what factor are the terminal speeds of the settling particles increased as compared to sedimentation cause by gravity?

A tire stops a car by use of friction.What modulus should we use to calculate the stress and strain on the tire?

A copper wire of length 5.0 m,cross sectional area 7.5 × 10−6 m2 and Young's modulus 11 × 1010 N/m2 has a 190-kg load hung on it.What is its increase in length? (g = 9.8 m/s2)

Bar One has a Young's modulus that is bigger than that of Bar Two.This indicates Bar One:

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Energy: Part A

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF

Direct-Current Circuits Sources of EMF: Part A

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics

Wave Optics: Part A

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

Particle Collisions, Mediating Photons, and Quark Structures: Exploring the Fundamentals of Physics

An ideal fluid,of density 0.90 × 10³ kg/m³,flows at 5.0 m/s through a level pipe with radius of 0.5 cm.The pressure in the fluid is 1.3 × 10⁵ N/m².This pipe connects to a second level pipe,with radius of 1.4 cm.Find the speed of flow in the second pipe.

A pipe carrying water has a radius of 1.0 cm.If the flow velocity is 9.0 cm/s,which of the following characterizes the flow? Take the viscosity of water to be 1.0 × 10−³ N⋅s/m.

A fountain sends water to a height of 100 m.What must be the pressurization (above atmospheric)of the underground water system? (1 atm = 10⁵ N/m²)

In order to overcome a surface tension of a fluid,a force of 1.34 × 10−² N is required to lift a wire ring of circumference 12.0 cm.What is the surface tension of the fluid?

What is the total mass of the Earth's atmosphere? (The radius of the Earth is 6.4 × 10⁶ m,and atmospheric pressure at the surface is 10⁵ N/m². )

The flow rate of a liquid through a 4.0-cm-radius pipe is 0.0070 m³/s.The average fluid speed in the pipe is:

The bottom of a flat-bottomed aluminum boat has an area of 4.4 m² and the boat's mass is 62 kg.When set afloat in water,how far below the water surface is the boat bottom? (water density = 1.0 × 10³ kg/m³)

What volume of water is displaced by a submerged 2.5-kg cylinder made of solid aluminum? (aluminum density = 2.7 × 10³ kg/m³ and water density = 1.0 × 10³ kg/m³)

A copper wire of length 5.0 m,cross sectional area 7.5 × 10−⁶ m² and Young's modulus 11 × 10¹⁰ N/m² has a 190-kg load hung on it.What is its increase in length? (g = 9.8 m/s²)