Title | Physics for Engineers and Scientists (Third Edition) (Vol. 1) by Hans C. Ohanian |
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Author | Anonymous User |
Course | Applied Physics |
Institution | National University of Computer and Emerging Sciences |
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W. W. Norton & Company, Inc. • www.NortonEbooks.com
PHYSICS FOR ENGINEERS AND SCIENTISTS THIRD EDITION Volume One
Hans C. Ohanian, John T. Markert
Physics for Engineers and Scientists Third Edition
Volume1 (Chapters 1–21) MOTION, FORCE, AND ENERGY OSCILLATIONS, WAVES, AND FLUIDS TEMPERATURE, HEAT, AND THERMODYNAMICS
B
W • W • NORTON & COMPANY
NEW YORK • LONDON
Physics for Engineers and Scientists T hird Edition Volume1 (Chapters 1–21) MOTION, FORCE, AND ENERGY OSCILLATIONS, WAVES, AND FLUIDS TEMPERATURE, HEAT, AND THERMODYNAMICS
HANS C. OHANIAN, UNIVERSITY OF VERMONT
JOHN T. MARKERT, UNIVERSITY OF TEXAS AT AUSTIN
B
W • W • NORTON & COMPANY
NEW YORK • LONDON
To Susan Ohanian, writer, who gently tried to teach me some of her craft.—H.C.O. To Frank D. Markert, a printer by trade; to Christiana Park, for her thirst for new knowledge; and to Erin, Ryan, Sean, and Gwen, for their wonder and clarity.—J.T.M.
Copyright © 2007 by W.W. Norton & Company, Inc. All rights reserved Printed in the United States of America Third Edition Composition: Techbooks Manufacturing: RR Donnelley & Sons Company Editor: Leo A. W. Wiegman Media Editor: April E. Lange Director of Manufacturing—College: Roy Tedoff Senior Project Editor: Christopher Granville Photo Researcher: Kelly Mitchell Editorial Assistant: Lisa Rand, Sarah L. Mann Copy Editor: Richard K. Mickey Book designer: Sandy Watanabe Layout artist: Paul Lacy Illustration Studio: JB Woolsey Arts, Inc. Cover Illustration: John Belcher, inter alia. Cover Design: Joan Greenfield
ISBN 978-0-393-11101-9 (ebook)
W. W. Norton & Company, Inc., 500 Fifth Avenue, New York, N.Y. 10110 www.wwnorton.com W. W. Norton & Company Ltd., Castle House, 75/76 Wells Street, London W1T 3QT 1234567890 W. W. Norton & Company has been independent since its founding in 1923, when William Warder Norton and Mary D. Herter Norton first published lectures delivered at the People’s Institute, the adult education division of New York City’s Cooper Union.The Nortons soon expanded their program beyond the Institute, publishing books by celebrated academics from America and abroad. By mid-century, the two major pillars of Norton’s publishing program—trade books and college texts— were firmly established. In the 1950s, the Norton family transferred control of the company to its employees, and today—with a staff of four hundred and a comparable number of trade, college, and professional titles published each year—W. W. Norton & Company stands as the largest and oldest publishing house owned wholly by its employees.
Brief Contents Chapters 1–21 appear in Volume 1; Chapters 22–36 appear in Volume 2; Chapters 37–41 appear in Volume 3. 20. HEAT 628 PREFACE xiii OWNER’S MANUAL xxv PRELUDE: THE WORLD OF PHYSICS xxxv
21. THERMODYNAMICS 661
PART
IV
ELECTRICITY
MAGNETISM 22.
AND
ELECTRIC FORCE AND
ELECTRIC CHARGE 23. THE ELECTRIC FIELD 24. GAUSS’ LAW
PART I MOTION, FORCE, AND ENERGY 1
25. ELECTROSTATIC POTENTIAL AND ENERGY
1. SPACE, TIME, AND MASS 2
26. CAPACITORS AND DIELECTRICS
2. MOTION ALONG A STRAIGHT LINE 28
27. CURRENTS AND OHM’S LAW
3. VECTORS 69
28. DIRECT CURRENT CIRCUITS
4. MOTION IN TWO AND THREE DIMENSIONS 94 5.
29. MAGNETIC FORCE AND FIELD
NEWTON’S LAWS OF MOTION 130
30. CHARGES AND CURRENTS IN MAGNETIC FIELDS
6. FURTHER APPLICATIONS OF NEWTON’S LAWS 173 7.
31. ELECTROMAGNETIC INDUCTION
WORK AND ENERGY 204
32. ALTERNATING CURRENT CIRCUITS
8. CONSERVATION OF ENERGY 235 9. GRAVITATION 271 10. SYSTEMS OF PARTICLES 305 11. COLLISIONS 338 12. ROTATION OF A RIGID BODY 365 13. DYNAMICS OF A RIGID BODY 394
PART V WAVES AND OPTICS 33. ELECTROMAGNETIC WAVES 34. REFLECTION, REFRACTION, AND OPTICS 35. INTERFERENCE AND DIFFRACTION
14. STATICS AND ELASTICITY 429
PART II OSCILLATIONS, WAVES, AND FLUIDS 466 15. OSCILLATIONS 468 16. WAVES 507 17. SOUND 536 18. FLUID MECHANICS 565
PART III TEMPERATURE, HEAT, AND THERMODYNAMICS 600
PART VI RELATIVITY, QUANTA, AND PARTICLES 36. THE THEORY OF SPECIAL RELATIVITY 37. QUANTA OF LIGHT 38. SPECTRAL LINES, BOHR’S THEORY, AND QUANTUM MECHANICS 39. QUANTUM STRUCTURE OF ATOMS, MOLECULES, AND SOLIDS 40. NUCLEI 41. ELEMENTARY PARTICLES AND COSMOLOGY
APPENDICES A-1
v
Table of Contents
2.7* Integration
of the Equations of Motion 54
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 57
Chapters 1–21 appear in Volume 1; Chapters 22–36 appear in Volume 2; and Chapters 37–41 appear in 3. VECTORS 69 Volume 3. 3.1 The PREFACE xiii OWNER’S MANUAL xxv
Displacement Vector and Other Vectors 70 3.2 Vector Addition and Subtraction 72 4. MOTION IN TWO AND THREE DIMENSIONS 94
PRELUDE: THE WORLD OF PHYSICS xxxv 4.1 Components
of Velocity and Acceleration 95 4.2 The Velocity and Acceleration Vectors 98 4.3 Motion with Constant Acceleration 102 4 .4 The Motion of Projectiles 104 4.5 Uniform Circular Motion 112 4.6 The
Position Vector; Components of a Vector 76 3.4 Vector Multiplication 81
Relativity of Motion and the Addition of Velocities 115
3.3 The
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 87
PART I MOTION, FORCE, AND ENERGY 1 1. SPACE, TIME, AND MASS 2 1.1 Coordinates
and Reference Frames 3 Unit of Length 5 1.3 The Unit of Time 9 1.4 The Unit of Mass 11 1.5 Derived Units 13 1.6 Significant Figures; Consistency of Units and Conversion of Units 14 1.2 The
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 20
2. MOTION ALONG A STRAIGHT LINE 28 2.1 Average
Speed 29 Velocity for Motion along a Straight Line 32 2.3 Instantaneous Velocity 35 2.4 Acceleration 39 2.5 Motion with Constant Acceleration 42 2 6 The Acceleration of Free Fall 49 2.2 Average
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 118
5. NEWTON’S LAWS OF MOTION 130 5.1 Newton’s
First Law 131 Second Law 133 5.3 The Combination of Forces 138 5.4 Weight; Contact Force and Normal Force 141 5 .5 Newton’s Third Law 144 5.6 Motion with a Constant Force 151 5.2 Newton’s
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 159
6. FURTHER APPLICATIONS OF NEWTON’S LAWS 173 6.1 Friction
174 Force of a Spring; Hooke’s Law 182 6.3 Force for Uniform Circular Motion 184 6 .4* The Four Fundamental Forces 191 6.2 Restoring
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 192
vii viii CONTENTS
7. WORK AND ENERGY 204 7.1 Work
205 7.2 Work for a Variable Force 211 7.3 Kinetic Energy 214 7.4 Gravitational Potential Energy 218 SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 224
8. CONSERVATION OF ENERGY 235 8.1 Potential
Energy of a Conservative Force 236 8.2 The Curve of Potential Energy 244 8.3 Other Forms of Energy 248 8.4* Mass and Energy 251 8.5 Power 253 SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 259
9. GRAVITATION 271 9.1 Newton’s
Law of Universal Gravitation 272 9 .2 The Measurement of G2 77 9.3 Circular Orbits 278 9.4 Elliptical 9.5 Energy
Orbits; Kepler’s Laws 282 in Orbital Motion 288
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 293
10. SYSTEMS OF PARTICLES 305
306 10.2 Center of Mass 313 10.3 The Motion of the Center of Mass 323 1 0.4 Energy of a System of Particles 327
12.1 Motion
of a Rigid Body 366
12.2 Rotation
about a Fixed Axis 367 with Constant Angular Acceleration 374 12.4* Motion with Time-Dependent Angular Acceleration 376 12.5 Kinetic Energy of Rotation; Moment of Inertia 378
12.3 Motion
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 384
13. DYNAMICS OF A RIGID BODY 394 13.1 Work,
Energy, and Power in Rotational Motion; Torque 395 13.2 The Equation of Rotational Motion 399 13.3 Angular Momentum and its Conservation 406 1 3.4* Torque and Angular Momentum as Vectors 410 SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 417
14. STATICS AND ELASTICITY 429 14.1 Statics
of Rigid Bodies 430 of Static Equilibrium 433 14.3 Levers and Pulleys 441 14.4 Elasticity of Materials 445 14.2 Examples
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 450
10.1 Momentum
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 328
PART II OSCILLATIONS, WAVES, AND FLUIDS 466 15. OSCILLATIONS 468 15.1 Simple
11. COLLISIONS 338 11.1 Impulsive
Forces 339 Collisions in One Dimension 344 11.3 Inelastic Collisions in One Dimension 348 1 1.4* Collisions in Two and Three Dimensions 351 11.2 Elastic
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 354
Harmonic Motion 469 Simple Harmonic Oscillator 476 15.3 Kinetic Energy and Potential Energy 480 1 5.4 The Simple Pendulum 484 15.5* Damped Oscillations and Forced Oscillations 488 15.2 The
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 494
16. WAVES 507 12 ROTATION OF A RIGID BODY 365
16.1 Transverse and Longitudinal Wave Motion 508 16.2 Periodic Waves 509
REVIEW PROBLEMS / ANSWERS TO CHECKUPS 650
CONTENTS ix
21. THERMODYNAMICS 661 16.3 The
Superposition of Waves 516 Waves 520
16.4 Standing
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 524
17. SOUND 536
Waves in Air 538 of Sound 540 17.3 The Speed of Sound; Standing Waves 543 1 7.4 The Doppler Effect 574 17.5* Diffraction 553
21.1 The
First Law of Thermodynamics 663 21.2 Heat Engines; The Carnot Engine 665 21.3 The Second Law of Thermodynamics 675 2 1.4 Entropy 677 SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 681
17.1 Sound
17.2 Intensity
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 555
18. FLUID MECHANICS 565 18.1 Density
and Flow Velocity 567 Steady Flow; Streamlines 569 1 8.3 Pressure 573 18.4 Pressure in a Static Fluid 575 18.5 Archimedes’ Principle 580 18.6 Fluid Dynamics; Bernoulli’s Equation 582 18.2 Incompressible
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 587
PART IV ELECTRICITY AND MAGNETISM 22. ELECTRIC FORCE AND ELECTRIC CHARGE 22.1 The
Electrostatic Force Law 22.3 The Superposition of Electrical Forces 22.4 Charge Quantization and Charge Conservation 22.5 Conductors and Insulators; Charging by Friction or by Induction 22.2 Coulomb’s
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
23. THE ELECTRIC FIELD 23.1 The
Electric Field of Point Charges Electric Field of Continuous Charge Distributions 23.3 Lines of Electric Field 23.4 Motion in a Uniform Electric Field 23.5 Electric Dipole in an Electric Field 23.2 The
PART III TEMPERATURE, HEAT, AND THERMODYNAMICS 600 19. THE IDEAL GAS 602
Ideal-Gas Law 603 Temperature Scale 609 19.3 Kinetic Pressure 613 19.4 The Internal Energy of an Ideal Gas 616
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
19.1 The 19.2 The
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS 619
20. HEAT 628 20.1 Heat
as a Form of Energy Transfer 629 Expansion of Solids and Liquids 633 2 0.3 Thermal Conduction 638 20.4 Changes of State 642 20.2 Thermal
20.5 The
Specific Heat of a Gas 644 Expansion of a Gas 647
20.6* Adiabatic
24. GAUSS’ LAW 24.1 Electric
Flux Law 24.3 Applications of Gauss’ Law 24.4 Superposition of Electric Fields 24.5 Conductors and Electric Fields 24.2 Gauss’
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
25. ELECTROSTATIC POTENTIAL AND ENERGY 25.1 The
Electrostatic Potential 25.2 Calculation of the Potential from the Field
CONTENTS
25.3 Potential
in Conductors of the Field from the Potential 25.5 Energy of Systems of Charges
25.4 Calculation
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
30.2 Force on a Wire 30.3 Torque on a Loop 30.4 Magnetism
in Materials 30.5* The Hall Effect SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
31. ELECTROMAGNETIC INDUCTION 26. CAPACITORS AND DIELECTRICS
in Combination
26.3 Dielectrics 26.4 Energy
EMF Law 31.3 Some Examples; Lenz’ Law 31.4 Inductance 31.5 Magnetic Energy ircuit 31.6* The RL C 31.2 Faraday’s
26.1 Capacitance 26.2 Capacitors
31.1 Motional
in Capacitors
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
27. CURRENTS AND OHM’S LAW 27.1 Electric
Current 27.2 Resistance and Ohm’s Law 27.3 The Resistivity of Materials 27.4 Resistances in Combination SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
28. DIRECT CURRENTS CIRCUITS
Force 28.2 Sources of Electromotive Force 28.3 Single-Loop Circuits 28.4 Multi-Loop Circuits 28.5 Energy in Circuits; Joule Heat 28.6* Electrical Measurements ircuit 28.7* The RC C 28.8* The Hazards of Electric Currents
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
32. ALTERNATING CURRENT CIRCUITS* 32.1 Resistor
Circuit 32.2 Capacitor Circuit 32.3 Inductor Circuit nd RLC 32.4* Freely Oscillating LC a Circuits 3 2.5* Series Circuits with Alternating EMF 3 2.6 Transformers SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
28.1 Electromotive
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
29. MAGNETIC FORCE AND FIELD 29.1 The
Magnetic Force 29.2 The Magnetic Field 29.3 Ampére’s Law 29.4 Solenoids and Magnets 29.5 The Biot-Savart Law SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
PART V WAVES AND OPTICS 33. ELECTROMAGNETIC WAVES 33.1 Induction
of Magnetic Fields; Maxwell’s Equations 33.2* The Electromagnetic Wave Pulse 33.3 Plane
Waves; Polarization Generation of Electromagnetic Waves 33.5 Energy of a Wave 33.6* The Wave Equation 33.4 The
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
34. REFLECTION, REFRACTION, AND OPTICS 34.1 Huygens’
Construction
34.2 Reflection 34.3 Refraction 34.4 Spherical
30. CHARGES AND CURRENTS IN MAGNETIC FIELDS 30.1 Circular
Field
Motion in a Uniform Magnetic
Mirrors Lenses 34.6* Optical Instruments 34.5 Thin
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
35. INTERFERENCE AND DIFFRACTION
39. QUANTUM STRUCTURE OF ATOMS, MOLECULES, AND SOLIDS
35.1 Thin
Films 35.2* The Michelson Interferometer 35.3 Interference from Two Slits 35.4 Interference from Multiple Slits 35.5 Diffraction by a Single Slit 35.6 Diffraction by a Circular Aperture; Rayleigh’s Criterion
39.1 Principal,
Orbital, and Magnetic Quantum Numbers; Spin 39.2 The Exclusion Principle and the Structure of Atoms 39.3* Energy Levels in Molecules 39.4 Energy
Bands in Solids Devices
39.5 Semiconductor
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
40. NUCLEI
PART VI RELATIVITY, QUANTA, AND PARTICLES
40.1 Isotopes 40.2 The
Strong Force and the Nuclear Binding Energy 40.3 Radioactivity
36. THE THEORY OF SPECIAL RELATIVITY 36.1 The
40.4 The
36.2 Einstein’s
40.5 Fission
Speed of Light; the Ether Principle of Relativity 36.3 Time Dilation 36.4 Length Contraction 36.5 The Lorentz Transformations and the Combination of Velocities 36.6 Relativistic Momentum and Energy 3 6.7* Mass and Energy
Law of Radioactive Decay
40.6* Nuclear
Bombs and Nuclear Reactors
40.7 Fusion SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
41. ELEMENTARY PARTICLES AND COSMOLOGY
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
41.1 The
Tools of High-Energy Physics Multitude of Particles 41.3 Interactions and Conservation Laws 41.4 Fields and Quanta 41.5 Quarks 41.6 Cosmology 41.2 The
37. QUANTA OF LIGHT 37.1 Blackbody
Radiation Quanta 37.3 Photons and the Photoelectric Effect 3 7.4 The Compton Effect 37.5 X Rays 37.2 Energy
37.6 Wave
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
xii CONTENTS APPENDICES
vs. Particle
SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
CONTENTS xi APPENDIX 1: GREEK ALPHABET A-1
38. SPECTRAL LINES, BOHR’S THEORY, AND QUANTUM MECHANICS 38.1 Spectral
Lines 38.2 Spectral Series of Hydrogen 38.3 The Nuclear Atom 38.4 Bohr’s Theory 38.5 Quantum Mechanics; The Schrödinger Equation SUMMARY / QUESTIONS / PROBLEMS / REVIEW PROBLEMS / ANSWERS TO CHECKUPS
APPENDIX 2: MATHEMATICS REVIEW A-1 A2.1 Symbols
A-1 and Roots A-1 A2.3 Arithmetic in Scientific Notation A-2 A2.4 Algebra A-3 A2.5 Equations with Two Unknowns A-5 A2.2 Powers
A2.6 The
Quadratic Formula A-5 and the Exponential Function A-5
A2.7 Logarithms
APPENDIX 3: GEOMETRY AND TRIGONOMETRY REVIEW A-7
A3.1 Perimeters,
Areas, and Volumes A-7
A3.2 Angles
A-7 A3.3 The Trigonometric Functions A-8 A3.4 The Trigonometric Identities A-9 A3.5 The Laws of Cosines and Sines
A6.3 Prefixes
A-23
APPENDIX 7: BEST VALUES OF FUNDAMENTAL CONSTANTS A-23
APPENDIX 8: CONVERSION FACTORS A-26
A-10 APPENDIX 4: CALCULUS REVIEW A-10 A4.1 Derivatives
A-10 A4.2 Important Rules for Differentiation A-11 A 4.3 Integrals A-12 A4.4 Important Rules for Integration A-15 A 4.5 The Taylor Series A-18 A4.6 Some Approximations A-18 APPENDIX 5: PROPAGATING UNCERTAINTIES A-19
APPENDIX 9: THE PERIODIC TABLE AND CHEMICAL ELEMENTS A-31
APPENDIX 10: FORMULA SHEETS A-33
Chapters 1–21 A-33 Chapters 22–41 A-34 APPENDIX 11: ANSWERS TO ODD-NUMBERED PROBLEMS AND REVIEW PROBLEMS A-35
PHOTO CREDITS A-51 APPENDIX 6: THE INTERNATIONAL ...