Solution Manual for Aircraft Performance, 1st Edition by Mohammad H. Sadraey

SOLUTION MANUAL FOR
f f

,http://www.elsolucionario.blogspot.com


LIBROS UNIVERISTARIO f



S Y SOLUCIONARIOS DE
f f f



MUCHOS DE ESTOS LIB f f f



ROS

LOS SOLUCIONARIOS CONT
f f



IENEN TODOS LOS EJERCIC
f f f



IOS DEL LIBRO RESUELTOS
f f f f



Y EXPLICADOS DE FORMA
f f f f



CLARA

VISITANOS PARA DESA f f



RGALOS GRATIS. f

,CHAPTER 1: Introduction, Measurement, EstimatingRes
f f f f f




ponses to Questions
f f




1. (a) Afparticularfperson’sffoot.fMerits:freproducible.fDrawbacks:fnotfaccessibleftofthefgeneral
public;fnotfinvariablef(couldfchangefsizefwithfage,ftimefoffday,fetc.);fnotfindestructible.
(b) Anyfperson’sffoot.fMerits:faccessible.fDrawbacks:fnotfreproduciblef(differentfpeoplefhavefdi
fferentfsizeffeet);fnotfinvariablef(couldfchangefsizefwithfage,ftimefoffday,fetc.);fnotfindestructi
ble.
Neitherfoffthesefoptionsfwouldfmakefafgoodfstandard.

2. Thefnumberfoffdigitsfyoufpresentfinfyourfanswerfshouldfrepresentfthefprecisionfwithfwhichfyoufknowfaf
measurement;fitfsaysfveryflittlefaboutfthefaccuracyfoffthefmeasurement.fForfexample,fiffyoufmeasurefth
eflengthfoffaftableftofgreatfprecision,fbutfwithfafmeasuringfinstrumentfthatfisfnotfcalibratedfcorrectly,fyo
ufwillfnotfmeasurefaccurately.

3. Thefwritersfoffthefsignfconvertedf3000fftftofmetersfwithoutftakingfsignificantffiguresfintofaccount.fTof
befconsistent,fthefelevationfshouldfbefreportedfasf900fm.

4. Thefdistancefinfmilesfisfgivenftofonefsignificantffigurefandfthefdistancefinfkilometersfisfgivenftoffivefsign
ificantffigures!fTheffigurefinfkilometersfindicatesfmorefprecisionfthanfreallyfexistsforfthanfisfmeaningfu
l.fTheflastfdigitfrepresentsfafdistancefonfthefsameforderfoffmagnitudefasfthefcar’sflength!

5. Iffyoufarefaskedftofmeasurefafflowerfbed,fandfyoufreportfthatfitfisf“four,”fyoufhaven’tfgivenfenoughfinfor
mationfforfyourfanswerftofbefuseful.fTherefisfaflargefdifferencefbetweenfafflowerfbedfthatfisf4fmflongfandf
onefthatfisf4fftflong.fUnitsfarefnecessaryftofgivefmeaningftofthefnumericalfanswer.

6. Imaginefthefjarfcutfintofslicesfeachfaboutfthefthicknessfoffafmarble.fByflookingfthroughfthefbottomfoffth
efjar,fyoufcanfroughlyfcountfhowfmanyfmarblesfarefinfonefslice.fThenfestimatefthefheightfoffthefjarfinfslic
es,forfinfmarbles.fByfsymmetry,fwefassumefthatfallfmarblesfarefthefsamefsizefandfshape.fThereforefthefto
talfnumberfoffmarblesfinfthefjarfwillfbefthefproductfoffthefnumberfoffmarblesfperfslicefandfthefnumberfoff
slices.

7. Youfshouldfreportfafresultfoff8.32fcm.fYourfmeasurementfhadfthreefsignificantffigures.fWhenfyoufmulti
plyfbyf2,fyoufarefreallyfmultiplyingfbyfthefintegerf2,fwhichfisfexact.fThefnumberfoffsignificantffiguresfisf
determinedfbyfyourfmeasurement.

8. Thefcorrectfnumberfoffsignificantffiguresfisfthree:fsinf30.0ºf=f0.500.

9. Youfonlyfneedftofmeasurefthefotherfingredientsftofwithinf10%fasfwell.

10. Usefulfassumptionsfincludefthefpopulationfoffthefcity,ftheffractionfoffpeoplefwhofownfcars,fthefaveragef
numberfoffvisitsftofafmechanicfthatfeachfcarfmakesfinfafyear,fthefaveragefnumberfoffweeksfafmechanicfw
orksfinfafyear,fandfthefaveragefnumberfoffcarsfeachfmechanicfcanfseefinfafweek.
(a) Therefarefaboutf800,000fpeoplefinfSanfFrancisco.fAssumefthatfhalffoffthemfhavefcars.fIffeachfoffthes
ef400,000fcarsfneedsfservicingftwicefafyear,fthenftherefaref800,000fvisitsftofmechanicsfinfafyear.fIff
mechanicsftypicallyfworkf50fweeksfafyear,fthenfaboutf16,000fcarsfwouldfneedftofbefseenfeachfweek
.fAssumefthatfonfaverage,fafmechanicfcanfworkfonf4fcarsfperfday,forf20fcarsfafweek.fTheffinalfestima
te,fthen,fisf800fcarfmechanicsfinfSanfFrancisco.
(b) Answersfwillfvary.

©f2008fPearsonfEducation,fInc.,fUpperfSaddlefRiver,fNJ.fAllfrightsfreserved.fThisfmaterialfisfprotectedfunderfallfcopyrightflawsf asf theyfcurrentlyfe
xist.f Nofportionfoffthisfmaterialfmayfbefreproduced,finfanyfformforfbyfanyfmeans,fwithoutfpermissionfinfwritingffromfthefpublisher.
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, PhysicsfforfScientistsf&fEngineersfwithfModernfPhysics,f4thfEdition InstructorfSolutionsfManual


11. OnefcommonfwayfisftofobservefVenusfatfaftim Sun
Venus
efwhenfaflinefdrawnffromfEarthftofVenusfisfper
pendicularftofaflinefconnectingfVenusftofthefS
un.fThenfEarth,fVenus,fandfthefSunfarefatfthef
verticesfoffafrightftriangle,fwithfVenusfatfthef9
0ºfangle.f(Thisfconfigurationfwillfresultfinfthef
greatestfangularfdistancefbetweenfVenusfandf
thefSun,fasfseenffromfEarth.)fOnefcanfthenfme
Earth
asurefthefdistancefto
Venus,fusingfradar,fandfmeasurefthefangularfdistancefbetweenfVenusfandfthefSun.fFromfthisfinfor
mationfyoufcanfuseftrigonometryftofcalculateftheflengthfofftheflegfofftheftrianglefthatfisfthefdistancef
fromfEarthftofthefSun.

12. No.fLengthfmustfbefincludedfasfafbasefquantity.


Solutions to Problems
f f




(a) 14fbillionfyearsf= 1.4f10 years
10f
1.

(b) (1.4 10 y)(3.156 10 s 1 y) =
f
10f
f
7
f f f 4.4f10 s
17




2. (a) 214 3fsignificantffigures

(b) 81.60 4f significantffigures

(c) 7.03 3fsignificantffigures

(d) 0.03 1fsignificantf figure

(e) 0.0086 2fsignificantffigures

(f) 3236 4f significantffigures

(g) 8700 2fsignificantffigures


(a) 1.156f= 1.156f10
0
3.
(b) (b) 21.8f= 2.18f10
1


−3
(c) (c) 0.0068f= 6.8f10
(d) (d) 328.65f= 3.2865f10
2


−1
(e) (e) 0.219f= 2.19f10
444f= 4.44f10
2
(f)(f)

4. (a) 8.69f104f = 86,f900
(b) 9.1103fff= 9,100
(c) 8.8f10−1f f = 0.88
©f2008fPearsonfEducation,fInc.,fUpperfSaddlefRiver,fNJ.fAllfrightsfreserved.fThisfmaterialfisfprotectedfunderfallfcopyrightflawsf asf theyfcurrentlyfe
xist.f Nofportionfoffthisfmaterialfmayfbefreproduced,finfanyfformforfbyfanyfmeans,fwithoutfpermissionfinfwritingffromfthefpublisher.
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