The SI units for viscosity are N·s/m2.Another commonly used unit for viscosity is the poise,where 10 poise = 1 N·s/m2.The poise is a fairly large unit,and it is more common to use the centipoise.Which of the following is equal to the centipoise?

A) 10−3 N·s/m2 B) 10−2 N·s/m2 C) 10−1 N·s/m2 D) 102 N·s/m2 A) 10−3 N·s/m2 B) 10−2 N·s/m2 C) 10−1 N·s/m2 D) 102 N·s/m2

Spherical particles of density 3.0 g/cm3 are shaken in a container of water (viscosity = 1.0 × 10−3 N·s/m3).The water is 8.0 cm deep and is allowed to stand for 30 minutes.What is the radius of the largest particles still in suspension at that time?

A) 4.5 × 10−6 m B) 9.0 × 10−6 m C) 2.6 × 10−6 m D) 5.6 × 10−6 m A) 4.5 × 10−6 m B) 9.0 × 10−6 m C) 2.6 × 10−6 m D) 5.6 × 10−6 m

A block of wood has a density of 650 kg/m3.When placed in water,what percent of the volume of the wood is above the surface?

A) 0,the block sinks. B) 30% C) 35% D) 65% A) 0,the block sinks. B) 30% C) 35% D) 65%

A solid object is made of two materials,one material having density of 2000 kg/m3 and the other having density of 8000 kg/m3.If the object contains equal volumes of the materials,what is its average density?

A) 3000 kg/m3 B) 3200 kg/m3 C) 5000 kg/m3 D) more information is needed A) 3000 kg/m3 B) 3200 kg/m3 C) 5000 kg/m3 D) more information is needed

Exam 10: Thermal Physics: Part A

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The SI units for viscosity are N·s/m².Another commonly used unit for viscosity is the poise,where 10 poise = 1 N·s/m².The poise is a fairly large unit,and it is more common to use the centipoise.Which of the following is equal to the centipoise?

(Multiple Choice)

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Question 21

By what factor is the total pressure greater at a depth of 650 m in water than at the surface where the pressure is one atmosphere? (water density = 1.0 × 10³ kg/m³,1 atmosphere pressure = 1.01 × 10⁵ N/m²,and g = 9.8 m/s²)

(Multiple Choice)

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Question 22

At the altitude h the atmospheric pressure is half the pressure at sea level.Let Equal the atmospheric pressure at sea level.What is the atmospheric pressure at an altitude 2h?

(Multiple Choice)

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Question 23

A solid rock,suspended in air by a spring scale,has a measured mass of 9.00 kg.When the rock is submerged in water,the scale reads 6.43 kg.What is the density of the rock? (water density = 1000 kg/m³)

(Multiple Choice)

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Question 24

A piece of aluminum has density 2.70 g/cm³ and mass 834g.The aluminum is submerged in a container of oil (oil's density = 0.650 g/cm³).How much oil does the metal displace?

(Multiple Choice)

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Question 25

Water (density = 1 × 10³ kg/m³)flows at 16 m/s through a pipe with radius 0.040 m.The pipe goes up to the second floor of the building,3.0 m higher,and the pressure remains unchanged.What is the speed of the water flow in the pipe on the second floor?

(Multiple Choice)

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Question 26

Spherical particles of density 2.0 g/cm³ are shaken in a container of water (viscosity = 1.0 × 10−³ N·s/m³).The water is 8.0 cm deep and is allowed to stand for 15 minutes.What is the greatest terminal velocity of the particles still in suspension at that time?

(Multiple Choice)

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(75)

Question 27

The Greenland ice sheet can be one km thick.Estimate the pressure underneath the ice where it is 0.80 km deep.(The density of ice is 918 kg/m³. )

(Multiple Choice)

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(83)

Question 28

A fluid is drawn up through a tube as shown in the figure.If the height difference from the top of the tank to the bottom of the siphon is H = 1.1 m,then what is the outflow speed? Assume the pressure is the same at the top of the tank and at the siphon outlet.

(Multiple Choice)

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(73)

Question 29

A 15,000-N car on a hydraulic lift rests on a cylinder with a piston of radius 0.20 m.If a connecting cylinder with a piston of 0.050-m radius is driven by compressed air,what force must be applied to this smaller piston in order to lift the car?

(Multiple Choice)

4.9/5

(77)

Question 30

A fountain sends water to a height of 50 m.What must be the pressurization (above atmospheric)of the underground water system? (1 atm = 10⁵ N/m²)

(Multiple Choice)

4.9/5

(78)

Question 31

Spherical particles of density 3.0 g/cm³ are shaken in a container of water (viscosity = 1.0 × 10−³ N·s/m³).The water is 8.0 cm deep and is allowed to stand for 30 minutes.What is the radius of the largest particles still in suspension at that time?

(Multiple Choice)

4.8/5

(83)

Question 32

A fluid has a density of 1040 kg/m³.If it rises to a height of 1.8 cm in a 2.0-mm diameter capillary tube,what is the surface tension of the liquid?

(Multiple Choice)

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Question 33

A balloon of negligible mass is filled with 300 m³ of helium.How big a payload can the balloon lift? (The density of air is 1.29 kg/m³;the density of helium is 0.18 kg/m³. )

(Multiple Choice)

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Question 34

Dams at two different locations are needed to form a lake.When the lake is filled,the water level will be at the top of both dams.Dam #2 is twice as high and three as wide as Dam #1.How much greater is the force of the water on Dam #2 than the force on Dam #1? (Ignore atmospheric pressure;it is pushing on both sides of the dams. )

(Multiple Choice)

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Question 35

A block of wood has a density of 650 kg/m³.When placed in water,what percent of the volume of the wood is above the surface?

(Multiple Choice)

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(74)

Question 36

The bottom of a flat-bottomed aluminum boat has an area of 4.0 m²,and the boat's mass is 120 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)

4.8/5

(78)

Question 37

A solid object is made of two materials,one material having density of 2000 kg/m³ and the other having density of 8000 kg/m³.If the object contains equal volumes of the materials,what is its average density?

(Multiple Choice)

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(81)

Question 38

A cube of wood of density 0.64 g/cm³ is 10 cm on a side.When placed in water,what height of the block will float above the surface? (water density = 1.00 g/cm³)

(Multiple Choice)

4.8/5

(84)

Question 39

If the column of mercury in a barometer stands at 69.4 cm,what is the atmospheric pressure? (The density of mercury is 13.6 × 10³ kg/m³ and g = 9.80 m/s². )

(Multiple Choice)

4.7/5

(71)

Question 40

Showing 21 - 40 of 56

Exam 10: Thermal Physics: Part A

The SI units for viscosity are N·s/m2.Another commonly used unit for viscosity is the poise,where 10 poise = 1 N·s/m2.The poise is a fairly large unit,and it is more common to use the centipoise.Which of the following is equal to the centipoise?

By what factor is the total pressure greater at a depth of 650 m in water than at the surface where the pressure is one atmosphere? (water density = 1.0 × 103 kg/m3,1 atmosphere pressure = 1.01 × 105 N/m2,and g = 9.8 m/s2)

At the altitude h the atmospheric pressure is half the pressure at sea level.Let Equal the atmospheric pressure at sea level.What is the atmospheric pressure at an altitude 2h?

A solid rock,suspended in air by a spring scale,has a measured mass of 9.00 kg.When the rock is submerged in water,the scale reads 6.43 kg.What is the density of the rock? (water density = 1000 kg/m3)

A piece of aluminum has density 2.70 g/cm3 and mass 834g.The aluminum is submerged in a container of oil (oil's density = 0.650 g/cm3).How much oil does the metal displace?

Water (density = 1 × 103 kg/m3)flows at 16 m/s through a pipe with radius 0.040 m.The pipe goes up to the second floor of the building,3.0 m higher,and the pressure remains unchanged.What is the speed of the water flow in the pipe on the second floor?

Spherical particles of density 2.0 g/cm3 are shaken in a container of water (viscosity = 1.0 × 10−3 N·s/m3).The water is 8.0 cm deep and is allowed to stand for 15 minutes.What is the greatest terminal velocity of the particles still in suspension at that time?

The Greenland ice sheet can be one km thick.Estimate the pressure underneath the ice where it is 0.80 km deep.(The density of ice is 918 kg/m3. )

A fluid is drawn up through a tube as shown in the figure.If the height difference from the top of the tank to the bottom of the siphon is H = 1.1 m,then what is the outflow speed? Assume the pressure is the same at the top of the tank and at the siphon outlet. ​

A 15,000-N car on a hydraulic lift rests on a cylinder with a piston of radius 0.20 m.If a connecting cylinder with a piston of 0.050-m radius is driven by compressed air,what force must be applied to this smaller piston in order to lift the car?

A fountain sends water to a height of 50 m.What must be the pressurization (above atmospheric)of the underground water system? (1 atm = 105 N/m2)

Spherical particles of density 3.0 g/cm3 are shaken in a container of water (viscosity = 1.0 × 10−3 N·s/m3).The water is 8.0 cm deep and is allowed to stand for 30 minutes.What is the radius of the largest particles still in suspension at that time?

A fluid has a density of 1040 kg/m3.If it rises to a height of 1.8 cm in a 2.0-mm diameter capillary tube,what is the surface tension of the liquid?

A balloon of negligible mass is filled with 300 m3 of helium.How big a payload can the balloon lift? (The density of air is 1.29 kg/m3;the density of helium is 0.18 kg/m3. )

A block of wood has a density of 650 kg/m3.When placed in water,what percent of the volume of the wood is above the surface?

The bottom of a flat-bottomed aluminum boat has an area of 4.0 m2,and the boat's mass is 120 kg.When set afloat in water,how far below the water surface is the boat bottom? (water density = 1.0 × 103 kg/m3)

A solid object is made of two materials,one material having density of 2000 kg/m3 and the other having density of 8000 kg/m3.If the object contains equal volumes of the materials,what is its average density?

A cube of wood of density 0.64 g/cm3 is 10 cm on a side.When placed in water,what height of the block will float above the surface? (water density = 1.00 g/cm3)

If the column of mercury in a barometer stands at 69.4 cm,what is the atmospheric pressure? (The density of mercury is 13.6 × 103 kg/m3 and g = 9.80 m/s2. )

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

Solids and Fluids: Part A

Thermal Physics

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

The SI units for viscosity are N·s/m².Another commonly used unit for viscosity is the poise,where 10 poise = 1 N·s/m².The poise is a fairly large unit,and it is more common to use the centipoise.Which of the following is equal to the centipoise?

By what factor is the total pressure greater at a depth of 650 m in water than at the surface where the pressure is one atmosphere? (water density = 1.0 × 10³ kg/m³,1 atmosphere pressure = 1.01 × 10⁵ N/m²,and g = 9.8 m/s²)

A solid rock,suspended in air by a spring scale,has a measured mass of 9.00 kg.When the rock is submerged in water,the scale reads 6.43 kg.What is the density of the rock? (water density = 1000 kg/m³)

A piece of aluminum has density 2.70 g/cm³ and mass 834g.The aluminum is submerged in a container of oil (oil's density = 0.650 g/cm³).How much oil does the metal displace?

Water (density = 1 × 10³ kg/m³)flows at 16 m/s through a pipe with radius 0.040 m.The pipe goes up to the second floor of the building,3.0 m higher,and the pressure remains unchanged.What is the speed of the water flow in the pipe on the second floor?

Spherical particles of density 2.0 g/cm³ are shaken in a container of water (viscosity = 1.0 × 10−³ N·s/m³).The water is 8.0 cm deep and is allowed to stand for 15 minutes.What is the greatest terminal velocity of the particles still in suspension at that time?

The Greenland ice sheet can be one km thick.Estimate the pressure underneath the ice where it is 0.80 km deep.(The density of ice is 918 kg/m³. )

A fluid is drawn up through a tube as shown in the figure.If the height difference from the top of the tank to the bottom of the siphon is H = 1.1 m,then what is the outflow speed? Assume the pressure is the same at the top of the tank and at the siphon outlet.

A fountain sends water to a height of 50 m.What must be the pressurization (above atmospheric)of the underground water system? (1 atm = 10⁵ N/m²)

Spherical particles of density 3.0 g/cm³ are shaken in a container of water (viscosity = 1.0 × 10−³ N·s/m³).The water is 8.0 cm deep and is allowed to stand for 30 minutes.What is the radius of the largest particles still in suspension at that time?

A fluid has a density of 1040 kg/m³.If it rises to a height of 1.8 cm in a 2.0-mm diameter capillary tube,what is the surface tension of the liquid?

A balloon of negligible mass is filled with 300 m³ of helium.How big a payload can the balloon lift? (The density of air is 1.29 kg/m³;the density of helium is 0.18 kg/m³. )

A block of wood has a density of 650 kg/m³.When placed in water,what percent of the volume of the wood is above the surface?

The bottom of a flat-bottomed aluminum boat has an area of 4.0 m²,and the boat's mass is 120 kg.When set afloat in water,how far below the water surface is the boat bottom? (water density = 1.0 × 10³ kg/m³)

A solid object is made of two materials,one material having density of 2000 kg/m³ and the other having density of 8000 kg/m³.If the object contains equal volumes of the materials,what is its average density?

A cube of wood of density 0.64 g/cm³ is 10 cm on a side.When placed in water,what height of the block will float above the surface? (water density = 1.00 g/cm³)

If the column of mercury in a barometer stands at 69.4 cm,what is the atmospheric pressure? (The density of mercury is 13.6 × 10³ kg/m³ and g = 9.80 m/s². )