BASIC PHYSICS KENNETH W. FORD ANSWERS TO EXERCISES IN
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BASICPHYSICS
KENNETH W. FORD
ANSWERS TO EXERCISES IN
PREFACE
What follows are answers to the exercises in BASIC PHYSICS, identi-cal except for a few small changes to the answers provided for the use of instructors shortly after the book’s 1968 publication. The changes are the addition of a Table of Contents, altered style for headings, and one altered page reference in the answer to Exercise 15.6 to reflect changed pagination in the 2017 version of the book. These answers may still be of some interest to teachers who buy and use the reissued book.
The reissued book is published by World Scientific. This Manual is provided by H Bar Press. It has been prepared by Adam B. Ford.
KEn FoRdDecember 2016
oRiginAl notE to instRuCtoR
In most of the exercises requiring numerical calculation, numbers have been chosen to be physically meaningful, rather than to lead to elementary arithmetic. Students should therefore be encouraged to develop skill in using the slide rule for multiplication and division. Most numerical answers are given here to three significant figures, although two figures are usually quite sufficient in students’ answers.
We have worked hard to reduce errors in this manual to a low level. Undoubtedly a few remain. The author will be most grateful to instructors who call attention to any wrong answers or ambiguous questions.
This manual was prepared by Kenneth W. Ford with the assistance of Harris Benson, David Tang, and John Williams.
©2016 Kenneth W. Ford
H bar Press
729 WestvieW st., PHilaDelPHia, Pa 19119
HbarPress.com
ContEnts
Chapter One 1Chapter Two 1Chapter Three 2Chapter Four 3Chapter Five 5Chapter Six 6Chapter Seven 9Chapter Eight 11Chapter Nine 13Chapter Ten 15Chapter Eleven 17Chapter Twelve 19Chapter Thirteen 24Chapter Fourteen 30Chapter Fifteen 32Chapter Sixteen 34Chapter Seventeen 39Chapter Eighteen 42Chapter Nineteen 48Chapter Twenty 49Chapter Twenty-One 51Chapter Twenty-Two 54Chapter Twenty-Three 55Chapter Twenty-Four 57Chapter Twenty-Five 62Chapter Twenty-Six 66Chapter Twenty-Seven 68Chapter Twenty-Eight 70
B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER onE
ChAPtER two
B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER thREE
B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER FouR
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER FivE
B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER six
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER sEvEn
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER Eight
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER ninE
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER tEn
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER ElEvEn
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER twElvE
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER thiRtEEn
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER FouRtEEn
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER FiFtEEn
B A S I C P H Y S I C S A N S W E R M A N U A L
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287.
B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER sixtEEn
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
3 8
B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER sEvEntEEn
B A S I C P H Y S I C S A N S W E R M A N U A L
4 0
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER EightEEn
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
4 6
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER ninEtEEn
B A S I C P H Y S I C S A N S W E R M A N U A L
4 9
ChAPtER twEnty
B A S I C P H Y S I C S A N S W E R M A N U A L
5 0
B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER twEnty-onE
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER twEnty-two
B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER twEnty-thREE
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER twEnty-FouR
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER twEnty-FivE
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
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ChAPtER twEnty-six
B A S I C P H Y S I C S A N S W E R M A N U A L
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B A S I C P H Y S I C S A N S W E R M A N U A L
6 8
ChAPtER twEnty-sEvEn
B A S I C P H Y S I C S A N S W E R M A N U A L
6 9
B A S I C P H Y S I C S A N S W E R M A N U A L
7 0
ChAPtER twEnty-Eight
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