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1、64万有引力定律的成就1（64achievementofthelawofgravity1）PptdocumentsmayexperiencepoorbrowsingontheWAPside.ItisrecommendedthatyoufirstselectTXT,ordownloadthesourcefiletothelocalview.Thesixthchapter,gravitationandAstronauticsTheachievementofthelawofgravityKnowledgereview1.Thecontentandexpressiono
2、fthelawofgravity.2.Gravitationexistsinanyobject.WhatistheapplicableconditionofformulaF=GMm/r2?Canyousay"r=0"whenFisinfinite?.3.DescribethecentripetalforceformulaoftherelationbetweenthephysicalquantitiesofthecircumferencemotionLearninggoal1,knowthatthelawofgravityplaysagreatroleinthef
3、ieldofastronomyandspace.2,thelawofgravitywillbeusedtocalculatethequalityofcelestialbodies,3,andunderstandthescientificlawsofthesignificanceofexploringandunderstandingtheunknownworldTheuniverseofallobjectsaremutuallyattracted,thenormallygravitationalattractionbetweentwoobjectsisverysm
4、all,peoplecannotbeawareofit,oftensmall,peoplecannotbeawareofit,butinthecelestialsystem,duetothequalityofallthegreatcelestialbody,inthesystem,becauseofthequalityofthedayaregreatthen,gravityplaysadecisiverole.Gravitationplaysadecisiverole.Thisroleisconcentratedinthefollowingtwoaspects:
5、thisroleisconcentratedinthefollowingtwoaspects:First,thegravitationalattractionofanobjectonthesurfaceofaplanetisapproximatelyequaltothegravitationalforceofanobject.Theaccelerationofthesurfaceofaplanetnearthesurfaceisconsideredequaltothegravitationalforceofanobject.Theaccelerationofth
6、eplanet'ssurfaceisapproximatedbygravitationalattraction.Asifbygravitationalattraction.GoldinsteadofMm,type2G2,thegravitationalaccelerationofthecelestialsurface(near),theaccelerationofgravityabovetheheightofhabovethecelestialbody(nearthecelestialbody),theaccelerationofgravityabovethec
7、elestialbodyR2,gR1,weighingtheearthmass=M=,Mg=GTwoTGM=gRTwo.Thecelestialbodymotionisconsideredasauniformcirclemotion.Thecelestialbodymotionisconsideredasauniformcirclemotion,andthegravitationalforceactsasthecentripetalforce.Gravitationactsasacentripetalforce.Mm,V22,PI222,G2=M=Mr,omeg
8、a=m,R()=MR(2
