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因为要赶在集市的开市时间前准备好摊位的物资以及各项细节，我们早早地起了床，准备出门时，天公却不作美地下起了滂沱大雨。
在出到社会之后，父母口中的真理即破灭，出人头地不那么容易，该如何养活自己，成为最迫切的问题，在被逼无奈之下，进入工厂打工，站在流水线上，暗无天日，那时甚感绝望，自己又何苦这样，活得那么的痛苦，像在做牛做马。澳龙一级棒
说了吃火锅，肯定非常认真，自己做的牛油锅底，一定要加醪糟，鲜猪黄喉的风味要比水发的来得脆弹
来碗清汤鸡油面，朴实无华
楼主大才，看着就流口水张张图看着都美味，让人流口水今天来个平平无奇的佛跳墙打边炉
这个疫期，我学会了发面，蒸馒头，蒸各种包子。
。Nearlyeverywhereintheopticaltelescope,theorbitsofcelestialbodiesfollowNewton'slawofmotion.
AllobjectsobservedbyhumansbeforethediscoveryofblackholesfollowNewton'slawofmotion.
Normally,whentheorbitalequationofthecelestialbodyisestablishedbythemotionoftwobodies,theconservationofangularmomentumismaintainedandthecelestialbodyrevolvesaroundthesun,justastheearthhasrevolvedaroundthesunfor4.6billionyears.Actualandaccuratemeasurementsofthesurfaceoftheearthareslowlymovingimmediatelytowardsthesun,anditisabsolutelyimpossibletogetcloserandclosertothesun.ThecorrectnessofNewton'sorbitisfurtherillustrated.Itisunshakable.
Butwiththecontinuousprogressofhumanscienceandtechnology,theHubbleSpaceTelescopehasbeendevelopedfromtheconventionalopticaltelescopeinthepast.Humanbeingsconstantlybreakthroughthelimit!ObservedanunprecedentedhugecelestialbodyBlackhole!
WiththeHubbleSpaceTelescopeobservingalargenumberofblackholesaroundthecelestialmovementisnotaquadraticellipticequation,butaspiralstructure,contrarytothepast,notonlydidnotleavetheblackholebutalsomoreandmoreclosetotheblackhole.What'sthereasonforthis?
AccordingtoNewton'sthirdlaw,themagnitudeofactionandreactionisequal,andthereisnoadditionalforceforgravitationtocounteracteachother,sothisanomalycannotbeexplainedbyeither.Becauseofthedistancebetweenblackholesandcelestialbodies,othercloserangeforcescannotbeexplained.
Butexpertshaverepeatedlymadeassumptions,amendments,reassumptionsandreamendments.Itisstillimpossibletoassumethisanomalousphenomenonofblackholes.Sofar,noonehasproposedthatNewton'sThirdLawisnotaproblematall.BecauseNewton'sthirdlawisdeeplyrootedintheacceptedNewton'skinematicstheory.
Fromtheexampleoftheballabove,itcanbeconcludedthatcelestialbodiesshouldalsobesubjecttoadditionalpullforce!__________ButNewton'sthirdlawshowsthatthepullofablackholeonacelestialbodyisequaltothepullofacelestialbodyonablackhole,thatis,theforceactingontheblackholeisequaltothereactionforce.
SoNewton'stheorycanneverconcludethatcelestialbodiesspiralintoblackholes.
Introductiontoangularmomentum:
Itisconservationofangularmomentumtoconsidertheprocessoftheearth'srevolutionwithoutconsideringspecialfactors.
Althoughthedistancefromthesunisfarandnearinthetransitproject,accordingtoKepler'ssecondlaw,theareasweptbythelinebetweenthesunandthemovingplanet(theradiusofthevector)isequalinequaltime,itisknownthatwhenthedistanceisclose,thespeedisfaster(theareamaybeequal).
Andangularmomentum=rvm,massmdoesnotchange.TheonlyareasthatdeterminetheareasweptbytheearthdayconnectionareRandV.Sincetheareaisfixedatthesametime,theproductofRandVmustbeconstant.
SoRVMdoesnotchange,thatis,conservationofangularmomentum.
Lookattheclassicphysicsexperiment:almosteverytextbookhasone.
Asshowninthefigure,asmallobject,locatedonasmoothhorizontaltable,isconnectedwithoneendofarope.TheotherendoftheropepassesthroughtheholeOinthecenterofthetable.TheobjectrotatesaroundOatanangularvelocityWaroundthecircumferenceofradiusr0.Nowtheropeisslowlymovingfromthehole.
Pulldown.Thentheangularmomentumoftheobjectwillremainunchanged,andthekineticenergyandmomentumwillchange.
(1)FindtheverticaldownwardexternalforceF0ontheBterminal.
(2)F0increasesveryslowlyto2F0,V
(3)Workdonebypullingforce.
WithOasthereferencepoint,themomentiszeroandtheangularmomentumisconserved.
F0increasesveryslowly,theradialvelocityisslight,andtheintermediateprocesscanbeapproximatelycircularmotion.
【Answer】
（1）ByNewton'sSecondLawF0=(mvo^2)/ro
（2）Becauseofconservationofangularmomentum：mvr=mv0r0
Circularmotion：(mv^2)/r=2F0=2(mvo^2)/ro
从而：V=∛2v0r=r0/∛2
(3)Duringthepullingprocess,theballactsasaspirallineofmotion.ρρ0=kθ
dW=<F,dr>【Theinnerproductofvectors】=Fdr
dW=Fdr=Fdr
F=(mv^2)/r=(mvo^2ro^2)/r^3
W=∫_r0^(r0/∛2)(mvo^2ro^2)/r^3dr〗
=1/2mvo^2(∛41)
It'sexactlyequaltotheincrementofkineticenergyofasphere.
Ek=1/2mv^2mvo^2=1/2mvo^2(∛41)
Obviously,onlywhentheballreceivesadditionalpullfromthecenterwillthekineticenergyandmomentumchange.
Forexample,thereisnoadditionalforcebetweentherotationoftheeartharoundthesuninthesolarsystem.Thegravitationalpullofthesunontheearthandthegravitationalpulloftheearthonthesunareapairofforcescounteractingintheoppositedirectionofthemagnitudeofthereactionforce,andthereisnoadditionalforce.Thisexplanationisabsolutelycorrect!
Onthecontrary,notonlydidtheynotleavetheblackhole,buttheyweregettingcloserandclosertoit.What'sthereasonforthis?
Inspiredbytheaboveexampleofasphere,celestialbodiesshouldbesubjecttoadditionalpull!ButNewton'sthirdlawshowsthatthepullofablackholeonacelestialbodyisequaltothepullofacelestialbodyonablackhole,thatis,theforceactingontheblackholeisequaltothereactionforce.
Therecanbenoextragravity.Otherwise,itwouldbeagainstNewton'sthirdlaw.
Closelogiccombinedwithrigorousanalysistools:thegravitationaldensityofblackholeparticlesexceedsthegravitationaldensityofordinarycelestialbodies,resultinginagravitationaldifference,whichisequivalenttothepullofasphere.。代表全家万分感谢。
在出到社会之后，父母口中的真理即破灭，出人头地不那么容易，该如何养活自己，成为最迫切的问题，在被逼无奈之下，进入工厂打工，站在流水线上，暗无天日，那时甚感绝望，自己又何苦这样，活得那么的痛苦，像在做牛做马。澳龙一级棒
说了吃火锅，肯定非常认真，自己做的牛油锅底，一定要加醪糟，鲜猪黄喉的风味要比水发的来得脆弹
来碗清汤鸡油面，朴实无华
楼主大才，看着就流口水张张图看着都美味，让人流口水今天来个平平无奇的佛跳墙打边炉
这个疫期，我学会了发面，蒸馒头，蒸各种包子。
。Nearlyeverywhereintheopticaltelescope,theorbitsofcelestialbodiesfollowNewton'slawofmotion.
AllobjectsobservedbyhumansbeforethediscoveryofblackholesfollowNewton'slawofmotion.
Normally,whentheorbitalequationofthecelestialbodyisestablishedbythemotionoftwobodies,theconservationofangularmomentumismaintainedandthecelestialbodyrevolvesaroundthesun,justastheearthhasrevolvedaroundthesunfor4.6billionyears.Actualandaccuratemeasurementsofthesurfaceoftheearthareslowlymovingimmediatelytowardsthesun,anditisabsolutelyimpossibletogetcloserandclosertothesun.ThecorrectnessofNewton'sorbitisfurtherillustrated.Itisunshakable.
Butwiththecontinuousprogressofhumanscienceandtechnology,theHubbleSpaceTelescopehasbeendevelopedfromtheconventionalopticaltelescopeinthepast.Humanbeingsconstantlybreakthroughthelimit!ObservedanunprecedentedhugecelestialbodyBlackhole!
WiththeHubbleSpaceTelescopeobservingalargenumberofblackholesaroundthecelestialmovementisnotaquadraticellipticequation,butaspiralstructure,contrarytothepast,notonlydidnotleavetheblackholebutalsomoreandmoreclosetotheblackhole.What'sthereasonforthis?
AccordingtoNewton'sthirdlaw,themagnitudeofactionandreactionisequal,andthereisnoadditionalforceforgravitationtocounteracteachother,sothisanomalycannotbeexplainedbyeither.Becauseofthedistancebetweenblackholesandcelestialbodies,othercloserangeforcescannotbeexplained.
Butexpertshaverepeatedlymadeassumptions,amendments,reassumptionsandreamendments.Itisstillimpossibletoassumethisanomalousphenomenonofblackholes.Sofar,noonehasproposedthatNewton'sThirdLawisnotaproblematall.BecauseNewton'sthirdlawisdeeplyrootedintheacceptedNewton'skinematicstheory.
Fromtheexampleoftheballabove,itcanbeconcludedthatcelestialbodiesshouldalsobesubjecttoadditionalpullforce!__________ButNewton'sthirdlawshowsthatthepullofablackholeonacelestialbodyisequaltothepullofacelestialbodyonablackhole,thatis,theforceactingontheblackholeisequaltothereactionforce.
SoNewton'stheorycanneverconcludethatcelestialbodiesspiralintoblackholes.
Introductiontoangularmomentum:
Itisconservationofangularmomentumtoconsidertheprocessoftheearth'srevolutionwithoutconsideringspecialfactors.
Althoughthedistancefromthesunisfarandnearinthetransitproject,accordingtoKepler'ssecondlaw,theareasweptbythelinebetweenthesunandthemovingplanet(theradiusofthevector)isequalinequaltime,itisknownthatwhenthedistanceisclose,thespeedisfaster(theareamaybeequal).
Andangularmomentum=rvm,massmdoesnotchange.TheonlyareasthatdeterminetheareasweptbytheearthdayconnectionareRandV.Sincetheareaisfixedatthesametime,theproductofRandVmustbeconstant.
SoRVMdoesnotchange,thatis,conservationofangularmomentum.
Lookattheclassicphysicsexperiment:almosteverytextbookhasone.
Asshowninthefigure,asmallobject,locatedonasmoothhorizontaltable,isconnectedwithoneendofarope.TheotherendoftheropepassesthroughtheholeOinthecenterofthetable.TheobjectrotatesaroundOatanangularvelocityWaroundthecircumferenceofradiusr0.Nowtheropeisslowlymovingfromthehole.
Pulldown.Thentheangularmomentumoftheobjectwillremainunchanged,andthekineticenergyandmomentumwillchange.
(1)FindtheverticaldownwardexternalforceF0ontheBterminal.
(2)F0increasesveryslowlyto2F0,V
(3)Workdonebypullingforce.
WithOasthereferencepoint,themomentiszeroandtheangularmomentumisconserved.
F0increasesveryslowly,theradialvelocityisslight,andtheintermediateprocesscanbeapproximatelycircularmotion.
【Answer】
（1）ByNewton'sSecondLawF0=(mvo^2)/ro
（2）Becauseofconservationofangularmomentum：mvr=mv0r0
Circularmotion：(mv^2)/r=2F0=2(mvo^2)/ro
从而：V=∛2v0r=r0/∛2
(3)Duringthepullingprocess,theballactsasaspirallineofmotion.ρρ0=kθ
dW=<F,dr>【Theinnerproductofvectors】=Fdr
dW=Fdr=Fdr
F=(mv^2)/r=(mvo^2ro^2)/r^3
W=∫_r0^(r0/∛2)(mvo^2ro^2)/r^3dr〗
=1/2mvo^2(∛41)
It'sexactlyequaltotheincrementofkineticenergyofasphere.
Ek=1/2mv^2mvo^2=1/2mvo^2(∛41)
Obviously,onlywhentheballreceivesadditionalpullfromthecenterwillthekineticenergyandmomentumchange.
Forexample,thereisnoadditionalforcebetweentherotationoftheeartharoundthesuninthesolarsystem.Thegravitationalpullofthesunontheearthandthegravitationalpulloftheearthonthesunareapairofforcescounteractingintheoppositedirectionofthemagnitudeofthereactionforce,andthereisnoadditionalforce.Thisexplanationisabsolutelycorrect!
Onthecontrary,notonlydidtheynotleavetheblackhole,buttheyweregettingcloserandclosertoit.What'sthereasonforthis?
Inspiredbytheaboveexampleofasphere,celestialbodiesshouldbesubjecttoadditionalpull!ButNewton'sthirdlawshowsthatthepullofablackholeonacelestialbodyisequaltothepullofacelestialbodyonablackhole,thatis,theforceactingontheblackholeisequaltothereactionforce.
Therecanbenoextragravity.Otherwise,itwouldbeagainstNewton'sthirdlaw.
Closelogiccombinedwithrigorousanalysistools:thegravitationaldensityofblackholeparticlesexceedsthegravitationaldensityofordinarycelestialbodies,resultinginagravitationaldifference,whichisequivalenttothepullofasphere.。代表全家万分感谢。
