A copper alloy wire of length 2.0 m,cross sectional area 7.1 × 10−6 m2,and Young's modulus 11 × 1010 N/m2,has a 200-kg load hung on it.What is its increase in length? (g = 9.8 m/s2)

A) 0.50 mm B) 1.0 mm C) 2.5 mm D) 5.0 mm A) 0.50 mm B) 1.0 mm C) 2.5 mm D) 5.0 mm

Exam 11: Energy in Thermal Processes Heat and Internal Energy: Part A

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Suppose a 0.30-kg mass on a spring that has been compressed 0.20 m has elastic potential energy of 1.0 J.How much further must the spring be compressed to triple the elastic potential energy?

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The SI base units for the spring constant are which of the following?

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An ore car of mass 2000 kg rolls downhill on tracks from a mine.At the end of the tracks,10.0 m lower in elevation,is a spring with k = 400,000 N/m.How much is the spring compressed in stopping the ore car? Ignore friction.

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A 0.20-kg object is oscillating on a spring with a spring constant of k = 30 N/m.What is the potential energy of the system when the object's displacement is 0.040 m,exactly half the maximum amplitude?

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Question 4

A large spring requires a force of 100 N to compress it only 0.010 m.What is the spring constant of the spring?

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Question 5

The position of a 0.64-kg mass undergoing simple harmonic motion is given by x = (0.160 m)cos (πt/16).What is its position at t = 6.0 s?

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Question 6

If a simple harmonic motion is described by ,what is the period of oscillation and what is the maximum speed during the oscillation? Assume SI units.

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Question 7

To double the total energy of a simple harmonic oscillator,by what factor should the amplitude change?

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Question 8

What are the base SI units for the torsion constant ?

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Question 9

If a simple harmonic motion is described by x = 3 cos(πt),starting from t = 0 s,what is the first occurrence of a value of t for which x = 0? Assume SI units.

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Question 10

A copper alloy wire of length 2.0 m,cross sectional area 7.1 × 10−⁶ m²,and Young's modulus 11 × 10¹⁰ N/m²,has a 200-kg load hung on it.What is its increase in length? (g = 9.8 m/s²)

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Question 11

Halving the mass of the bob on a simple pendulum will cause a change in the frequency of the pendulum swing by what factor?

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Question 12

A pendulum on the Earth has a period T.The acceleration due to gravity on Mars is less than that on the Earth,and the acceleration due to gravity on the Moon is even less.Where would the period of an identical pendulum be the least?

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Question 13

A mass of 0.40 kg,attached to a spring with a spring constant of 80 N/m,is set into simple harmonic motion.What is the magnitude of the acceleration of the mass when at its maximum displacement of 0.050 m from the equilibrium position?

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Question 14

The position of a 0.64-kg mass undergoing simple harmonic motion is given by x = (0.120 m)cos (πt/16).What is the maximum net force on the mass as it oscillates?

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Question 15

A mass of 0.40 kg,hanging from a spring with a spring constant of 160 N/m,is set into an up-and-down simple harmonic motion.What is the speed of the mass when moving through the equilibrium point? The starting displacement from equilibrium is 0.10 m.

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Question 16

A 0.20-kg object is attached to a spring with spring constant k = 10 N/m and moves with simple harmonic motion over a horizontal,frictionless surface.At the instant that it is displaced from equilibrium by −0.060 m,what is its acceleration?

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Question 17

By what factor should the length of a simple pendulum be changed if the period of vibration were to be quadrupled?

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Question 18

By what factor must one change the weight suspended vertically from a spring coil in order to double its period of simple harmonic motion?

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Question 19

A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 5.0 cm.If a timer is started when its displacement is a maximum (hence x = 5 cm when t = 0),what is the acceleration magnitude when t = 3 s?

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Question 20

Showing 1 - 20 of 54

Exam 11: Energy in Thermal Processes Heat and Internal Energy: Part A

Suppose a 0.30-kg mass on a spring that has been compressed 0.20 m has elastic potential energy of 1.0 J.How much further must the spring be compressed to triple the elastic potential energy?

The SI base units for the spring constant are which of the following?

An ore car of mass 2000 kg rolls downhill on tracks from a mine.At the end of the tracks,10.0 m lower in elevation,is a spring with k = 400,000 N/m.How much is the spring compressed in stopping the ore car? Ignore friction.

A 0.20-kg object is oscillating on a spring with a spring constant of k = 30 N/m.What is the potential energy of the system when the object's displacement is 0.040 m,exactly half the maximum amplitude?

A large spring requires a force of 100 N to compress it only 0.010 m.What is the spring constant of the spring?

The position of a 0.64-kg mass undergoing simple harmonic motion is given by x = (0.160 m)cos (πt/16).What is its position at t = 6.0 s?

If a simple harmonic motion is described by ,what is the period of oscillation and what is the maximum speed during the oscillation? Assume SI units.

To double the total energy of a simple harmonic oscillator,by what factor should the amplitude change?

What are the base SI units for the torsion constant ?

If a simple harmonic motion is described by x​ = 3 cos(πt),starting from t = 0 s,what is the first occurrence of a value of t for which x = 0? Assume SI units.

A copper alloy wire of length 2.0 m,cross sectional area 7.1 × 10−6 m2,and Young's modulus 11 × 1010 N/m2,has a 200-kg load hung on it.What is its increase in length? (g = 9.8 m/s2)

Halving the mass of the bob on a simple pendulum will cause a change in the frequency of the pendulum swing by what factor?

A pendulum on the Earth has a period T.The acceleration due to gravity on Mars is less than that on the Earth,and the acceleration due to gravity on the Moon is even less.Where would the period of an identical pendulum be the least?

A mass of 0.40 kg,attached to a spring with a spring constant of 80 N/m,is set into simple harmonic motion.What is the magnitude of the acceleration of the mass when at its maximum displacement of 0.050 m from the equilibrium position?

The position of a 0.64-kg mass undergoing simple harmonic motion is given by x = (0.120 m)cos (πt/16).What is the maximum net force on the mass as it oscillates?

A mass of 0.40 kg,hanging from a spring with a spring constant of 160 N/m,is set into an up-and-down simple harmonic motion.What is the speed of the mass when moving through the equilibrium point? The starting displacement from equilibrium is 0.10 m.

A 0.20-kg object is attached to a spring with spring constant k = 10 N/m and moves with simple harmonic motion over a horizontal,frictionless surface.At the instant that it is displaced from equilibrium by −0.060 m,what is its acceleration?

By what factor should the length of a simple pendulum be changed if the period of vibration were to be quadrupled?

By what factor must one change the weight suspended vertically from a spring coil in order to double its period of simple harmonic motion?

A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 5.0 cm.If a timer is started when its displacement is a maximum (hence x = 5 cm when t = 0),what is the acceleration magnitude when t = 3 s?

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

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

If a simple harmonic motion is described by x = 3 cos(πt),starting from t = 0 s,what is the first occurrence of a value of t for which x = 0? Assume SI units.

A copper alloy wire of length 2.0 m,cross sectional area 7.1 × 10−⁶ m²,and Young's modulus 11 × 10¹⁰ N/m²,has a 200-kg load hung on it.What is its increase in length? (g = 9.8 m/s²)