Key to the Exs1112.docx
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Key to the Exs1112.docx
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KeytotheExs1112
KeytotheExs.
Ex.11
I.
1.Mostoftheatomicmassisconcentratedinthenucleus,whichexplainswhythenucleusisalmoststationarywithintheatom.
2.Faradaywasthegreatscientistwho/thatdiscoveredthephenomenonofelectromagneticinduction.
3.Thisisthedevicewhich/thatisusedtomeasuretheparameter.
4.Themeter(that/which)weusetomeasurethevoltageacrossaresistoriscalledvoltmeter.
5.Thefirstthingthatistobedoneistodeterminethepressurewithinthiscontainer.
6.Computersarethemostefficientassistants(that)manhaseverhad.
7.Inthiscase,anythingthathasbeenstoredwillbelost.
8.Thereisanotherkindofforce(that)weneedtoconsider.
9.Nowthisdiseaseisnolongertheseriousproblem(that)itoncewas.
10.Theplaceswheresmallcomputerscanbeusedseem(tobe)endless.
11.Radarcanmeasurethetime(that)ittakesfortheradioechotoreturn.
12.Wemustcalculatethedistance(that/throughwhich)thebodyislifted.
13.Thedirection(that/inwhich)abodymovesisalsoveryimportant.
14.Itisnecessarytodeterminethenumberoftimes(that/bywhich)thisamplifieramplifiessignals.
15.Allweneed(to)dois(to)pressthisbutton.
16.Allonecansayisthatanatomconsistsofstillsmallerparticles.
17.I1ismuchlargerthanI2,inwhichcaseI2canbeneglected.
18.Weequatethesetworatios,fromwhichthesimplestformulafollows/results.
19.Thereason(why/forwhich/that)thiscomponentisusedhereisquiteclear.
20.Itisnecessarytodeterminethetime(when/atwhich/that)they-componenthasdecreasedtozero.
21.Wefirstdiscussthewaveswhosefrequencies/thefrequenciesofwhichareconstant.
22.Anyradio-frequencycomponent(that)theremaybe/that(there)mayexistinthiscircuitisfilteredoutbycapacitorC.
23.Wecanfindafewconditions,ofwhichonlytwo/onlytwoofwhicharenecessary.
24.Thecurvethey-coordinateofeachpointonwhichiszeroisjustthex-axis.
II.
1.Thepointatwhichthecirclecutstheaxisofrealsiswhereα=ω.
2.Wecanfindthesingleforcetowhichthesetwofactorsareequivalent.
3.TheparticularfrequencyatwhichXL=XCiscalledtheresonantfrequency.
4.Thesevectorsarenotaddedtheway(inwhich/that)numbersareadded.
5.Theforceofgravitymeanstheforcewithwhichtheearthattractsabody.
6.Thesurfaceofapicturetubeuponwhichtheelectronsproducethepictureiscalledthescreen.
7.Inallresistancesthroughwhichacurrentflows,electricalenergyisconvertedintoheatenergy.
8.Theproductofaforceandthetimeduringwhichitactsiscalledimpulse.
9.Thisresistoristheoneacrosswhichthenegativebiasisdeveloped.
10.Amagnetcancauseanelectriccurrentinawirenearwhichitismoved.
11.Anymechanicaldevicebywhichheatisconvertedintoworkiscalledaheatengine.
12.Theauthorwouldliketoexpressthankstotheeditorsoftheseriesofwhichthisbookisapart/towhichthisbookbelongs.
13.Thisisaparallelogramofwhichthetwogivenvectorsaresides.
14.Thepressureisequaltothetotalforcedividedbytheareaoverwhichitisexerted.
15.Thetwoelementsofwhichwaterconsistsarehydrogenandoxygen.
16.Thisdependsontheefficiencywithwhichelectronsareproduced.
17.Thesetwolawsarethefoundationonwhichallotherlawsarebuilt.
18.Thesubstancesinwhichtherearemanyfreeelectronsareconductors.
19.Itisnecessarytoexplainthereasonforwhichthisdeviceisusedhere.
20.Thetemperatureatwhichwaterfreezesisgenerally0oC.
III.
1.Asweshallsee,acidsandbasesplayanimportantroleinthefunctioningoflife.
2.Asthetitleindicates,thischapterwilldiscussnonlinearequations.
3.Asthenamesshows,afluidisasubstancewhichflowsreadily.
4.Aswasdiscussedinthepreviouschapter,atransistorisacurrent-controldevice.
5.Thiswaveformhasadccomponent,aswillbeexplainedlater.
6.Thissingleforceproducesthesameeffectasisproducedbythoseforcestogether.
7.Thesignofthechargedoesnotaffecttheconclusion,ascanbeseenreadily.
8.Nowweareabletosolvesuchdifferentialequationsasoccurinphysics.
9.Thisfunctioncanbeaccomplishedbyusingthefulladderaswasdescribedintheprevioussection.
10.Radiowavestravelatthesamespeedaslight.
11.Torricelli’semptinesswillappearontheupperpartofthetube,orvacuumaswenowcallit(=whatwecallvacuum).
12.Theseconceptsenablesustounderstandawiderangeofphenomenainelectrostatics,or“staticelectricity,”asitiscalled.
OR:
…,orwhatiscalled“staticelectricity”
13.Thisrevisionresultedinthecreationofhigh-speedmechanics,orasitisreferredto,“relativisticmechanics.”
OR:
…,orwhatisreferredtoas“relativisticmechanics”.
14.Thiscurrentis,aspredicted,verysmall.
15.Firstletusconsiderthesimplestcircuitasshownonpage2.
IV.
1.Thisisaslightlyhighervaluethanwepredicted.
2.Manymoreproblemsarepresentedthanneedbegivenashomeworkassignments.
3.Nearlyallamplifiersrequiremoreamplificationthanonlyonetransistorcanachieve.
4.Thisreactorcanproducemorefuelthanitconsumes.
5.Letusconsiderthecasewhenthetorqueiszero.
6.Wemustdeterminethevaluesofcurrentsandvoltagesaftertheswitchcloses.
7.Itisnecessarytofirstfindthelimitascapproachesinfinity.
8.Duringthe10yearssincethisbookwasfirstpublished,significantchangeshavetakenplace(=havebeenseen)inplasticsindustry.
V.
Inthespringof2003,asanewtypeofinfectiousdisease,theSARSattackedtheglobe(=Thespringof2003sawthesuddenattackoftheglobebytheSARS,anewtypeofinfectiousdisease).Itsorigin,developingtrendandtherapeuticschedulearethetopicswhicharetobeurgentlytackled,buttheyaredifficultproblemsfullofnumerousunknowns.Itisfromtheviewpointofstatisticsthatthispaperpresentsamathematicalmodelfor/ofthedevelopingtrendofSARScases.Thefunctionp(t)for/ofthevariationofthenumberofcaseswithtimeconsistsoftwoparts.
Forthereadertounderstandtheguidelineofthoughtforthederivationofthemodel,letusconsiderthefactorswhichfollow(=thefollowingfactors).Itisworthpointingoutthattheparametersofthemodelarenotinvariable.Atthesametime/Alsoitisnecessarytopaymuchattentiontothedegreetowhichvariousmeasureshavebeenputinplace.
VI.
1.Eveninthiscasetheseprotocolscanprovidealimitednumberofuserswiththeacceptablequalityofvoiceservice.
2.AcomparisonofthismethodwiththeMEImethodshowsthatthethirdpostulateintheMEImethodisquestionable.
3.Thispaperpresentsamethodforan8089microcontrollertoseries-communicatewitha386personalcomputer.
4.ThispaperdealsmainlywiththeWienerfilteringofandtheLMSalgorithmforsuchsignals.
5.Theeffectofequalizerparametersonequalizationperformanceisanalyzedindetail.
OR:
Adetailedanalysisismadeoftheeffectofequalizerparametersonequalizationperformance.
6.EachreceiverchannelinFig.1containsanRFamplifier,amixer,anIFamplifier,anA/Dconverter,etc.
7.Thelargertheabnormalextent(is),thelargertheresidualmismatchis,withthecurvegoingup.
8.Ahighlandwildplant,JUEMAbelongstotherosefamily.(=JUEMAisahighlandwildplantbelongingtotherosefamily.)Itcontainsvitaminsandelementssuchasiron,magnesium,calcium,(and)zinc.Pharmacologicalstudyshowsthattakingitforalongtime(=along-termintake)willprolonglife,resistcancerandreduceweight.Itisalsoagoodgiftforyourrelativesandfriends.
Ex.12
I.
1.Shouldanythingabnormalhappen,switch/turnoffthepowersupplyatonce/immediately.
2.Iftherewereno(=Without)gravitation,everythingwouldflyofftheearthintospace.
3.Ifmanmadeuseofallthesunlight,hewouldhavenoneedforcoalorotherfuels.
4.Ifthischangeweretobeincluded(=shouldbeincluded)intheanalysis,itwouldbecomeextremelycomplex..
5.Discontinueshouldaskinreactionoccur.
6.Hadelectroniccomputersnotbeenused,itwouldhavetakenthemalongtimetosolvethisproblem.
7.Topursuethisdevelopmentofmoleculartheoryfurtherwouldtakeusintotheareaofatomicandnuclearstructure.
8.Itisveryimportantthatallsolutions(should)becheckedintheoriginalequation.
9.Itissuggestedthatthisdesign(should)bemodifiedatonce.
10.Thisrequiresthatthetransistor(should)beprobablybiased.
11.Withoutsemiconductors,satellitecommunicationswouldbeimpossible.
12.WecouldalsohaveusedTheorem6toderivetheresult.
13.Itisquiteessentialthatdesigners(should)haveapracticalknowledgeofcomputers.
14.Thiscomesfromthenecessitythattheoutput(should)bestable.
15.Therequirementthatenergy(should)beconservedmustbesatisfied.
16.Anecessaryconditionisthattheintegration(should)beasolutionof/toEuler’sequation.
17.Theirsuggestionisthatthispoint(should)begrounded.
18.Thistransmissionlineactsasifitwereopen-circuited.
19.Itlookedasiftheanswertothisproblemhadbeenwrong.
20.Everythinghere,beitacomponentoradevice,ishomemade.
21.Couldapinbedrawnintoawireofthethicknessofoneatom,itwouldencircletheearththousandsoftimes.
22.Theconditionthatx-a(should)dividethenumeratoristhatx=a(should)bearoot.
II.
1.Itwasthisscientistwho/thatdiscoveredthisphenomenonacenturyago.
2.Itisthisconclusionwithwhichweareconcerned.
OR:
Itisthisconclusionwhich/thatweareconcernedwith.
3.Thismethoddoeswork.
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