Exam 14: Sound: Part A

A rectangular steel plate with dimensions of 60 cm × 25 cm is heated from 20°C to 150°C.What is its change in area? (Coefficient of linear expansion for steel is 11 × 10−⁶/°C. )

(Multiple Choice)

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Question 61

Arrange the following units,Calorie,calorie,and Joule from smallest to largest.

(Multiple Choice)

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Question 62

Dmitri places one end of a copper rod in a heat reservoir and the other end in a heat sink.By what factor is the rate of heat flow changed when the temperature difference between the reservoir and sink is doubled?

(Multiple Choice)

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Question 63

A machine gear consists of 0.40 kg of iron and 0.16 kg of copper.How much total heat is generated in the part if its temperature increases by 35°C? (Specific heats of iron and copper are 450 and 390 J/kg · °C,respectively. )

(Multiple Choice)

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Question 64

Iced tea is made by adding ice to 3.0 kg of hot tea,initially at 80°C.How many kg of ice,initially at 0°C,are required to bring the mixture to 10°C? (L_f = 3.33 x 10⁵ J/kg,c_w = 4186 J/kg·°C)

(Multiple Choice)

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Question 65

When heating 2 kg of ice from -40°C,2 kg of water from 20°C to 50°C,and 2 kg of steam from 100°C to 125°C,which requires the most energy?

(Multiple Choice)

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Question 66

133°F is how many degrees Celsius?

(Multiple Choice)

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Question 67

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Exam 14: Sound: Part A

A rectangular steel plate with dimensions of 60 cm × 25 cm is heated from 20°C to 150°C.What is its change in area? (Coefficient of linear expansion for steel is 11 × 10−6/°C. )

Arrange the following units,Calorie,calorie,and Joule from smallest to largest.

Dmitri places one end of a copper rod in a heat reservoir and the other end in a heat sink.By what factor is the rate of heat flow changed when the temperature difference between the reservoir and sink is doubled?

A machine gear consists of 0.40 kg of iron and 0.16 kg of copper.How much total heat is generated in the part if its temperature increases by 35°C? (Specific heats of iron and copper are 450 and 390 J/kg · °C,respectively. )

Iced tea is made by adding ice to 3.0 kg of hot tea,initially at 80°C.How many kg of ice,initially at 0°C,are required to bring the mixture to 10°C? (Lf = 3.33 x 105 J/kg,cw = 4186 J/kg·°C)

When heating 2 kg of ice from -40°C,2 kg of water from 20°C to 50°C,and 2 kg of steam from 100°C to 125°C,which requires the most energy?

133°F is how many degrees Celsius?

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

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

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

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A rectangular steel plate with dimensions of 60 cm × 25 cm is heated from 20°C to 150°C.What is its change in area? (Coefficient of linear expansion for steel is 11 × 10−⁶/°C. )

Iced tea is made by adding ice to 3.0 kg of hot tea,initially at 80°C.How many kg of ice,initially at 0°C,are required to bring the mixture to 10°C? (L_f = 3.33 x 10⁵ J/kg,c_w = 4186 J/kg·°C)