Physical constants 1 PHYSICAL CONSTANTS Table 11 Reviewed 2013 by PJ Mohr NIST Mainly from the CODATA Re commended Values of the Fundamental Physical Constants 2010 by PJ Mohr BN Taylor ID: 8889 Download Pdf
1.PHYSICALCONSTANTSTable1.1.Reviewed2010byP.J.Mohr(NIST).Mainlyfromthe
Mohr and Barry N Taylor These tables give the 1998 selfconsistent set of values of the basic constants and conversion factors of physics and chemistry recommended by the Committee on Data for Science and Technology CODATA for international use The
CS1313 Fall 2015. 1. Constants . Lesson Outline. Constants Lesson Outline. What is a Constant?. The Difference Between a Variable and a Constant. Categories of Constants: Literal & Named. Literal Constants.
In This Value Does Not Change During The Program`s Execution. TYPES OF CONSTANTS. INTEGER CONSTANTS. An integer is a whole number without any decimal point.. No commas or blank space allowed.. Valid integer- 10; 013; -772.
2(+)cos1 2( )cos+cos=2cos1 2(+)cos1 2( )cos cos=2sin1 2(+)sin1 2( )InatriangleABC,a=sinA=b=sinB=c=sinCanda2=b2+c2 2bccosAPrexesT=tera=1012c=centi=10 2G=giga=109m=milli=10 3M=mega=106
Review of Splitting. Caused by shift due to magnetic fields of adjacent protons. We say that these protons are “coupled”. Protons may be coupled to different degrees. Coupling constant. Typically 7 Hz for adjacent sp.
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Physical constants 1 PHYSICAL CONSTANTS Table 11 Reviewed 2013 by PJ Mohr NIST Mainly from the CODATA Re commended Values of the Fundamental Physical Constants 2010 by PJ Mohr BN Taylor
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1.Physicalconstants 1.PHYSICALCONSTANTSTable1.1.Reviewed2013byP.J.Mohr(NIST).Mainlyfromthe\CODATARecommendedValuesoftheFundamentalPhysicalConstants:2010"byP.J.Mohr,B.N.Taylor,andD.B.NewellinRev.Mod.Phys.84,1527(2012).Thelastgroupofconstants(beginningwiththeFermicouplingconstant)comesfromtheParticleDataGroup.Theguresinparenthesesafterthevaluesgivethe1-standard-deviationuncertaintiesinthelastdigits;thecorrespondingfractionaluncertaintiesinpartsper109(ppb)aregiveninthelastcolumn.Thissetofconstants(asidefromthelastgroup)isrecommendedforinternationalusebyCODATA(theCommitteeonDataforScienceandTechnology).Thefull2010CODATAsetofconstantsmaybefoundathttp://physics.nist.gov/constants.SeealsoP.J.MohrandD.B.Newell,\ResourceLetterFC-1:ThePhysicsofFundamentalConstants,"Am.J.Phys.78,338(2010). QuantitySymbol,equationValueUncertainty(ppb) speedoflightinvacuumc299792458ms1exactPlanckconstanth6.62606957(29)1034Js44Planckconstant,reduced~h=21.054571726(47)1034Js44=6.58211928(15)1022MeVs22electronchargemagnitudee1.602176565(35)1019C=4.80320450(11)1010esu22,22conversionconstant~c197.3269718(44)MeVfm22conversionconstant(~c)20.389379338(17)GeV2mbarn44 electronmassme0.510998928(11)MeV=c2=9.10938291(40)1031kg22,44protonmassmp938.272046(21)MeV=c2=1.672621777(74)1027kg22,44=1.007276466812(90)u=1836.15267245(75)me0.089,0.41deuteronmassmd1875.612859(41)MeV=c222uniedatomicmassunit(u)(mass12Catom)/12=(1g)/(NAmol)931.494061(21)MeV=c2=1.660538921(73)1027kg22,44 permittivityoffreespace0=1=0c28.854187817:::1012Fm1exactpermeabilityoffreespace04107NA2=12.566370614:::107NA2exact ne-structureconstant=e2/40~c7.2973525698(24)103=1=137:035999074(44)y0.32,0.32classicalelectronradiusre=e2=40mec22.8179403267(27)1015m0.97(eComptonwavelength)/2e=~=mec=re13.8615926800(25)1013m0.65Bohrradius(mnucleus=1)a1=40~2=mee2=re20.52917721092(17)1010m0.32wavelengthof1eV/cparticlehc=(1eV)1.239841930(27)106m22RydbergenergyhcR1=mee4=2(40)2~2=mec22=213.60569253(30)eV22ThomsoncrosssectionT=8r2e/30.6652458734(13)barn1.9 BohrmagnetonB=e~=2me5.7883818066(38)1011MeVT10.65nuclearmagnetonN=e~=2mp3.1524512605(22)1014MeVT10.71electroncyclotronfreq./eld!ecycl=B=e=me1.758820088(39)1011rads1T122protoncyclotronfreq./eld!pcycl=B=e=mp9.57883358(21)107rads1T122 gravitationalconstantzGN6.67384(80)1011m3kg1s21:2105=6.70837(80)1039~c(GeV=c2)21:2105standardgravitationalaccel.gN9.80665ms2exact AvogadroconstantNA6.02214129(27)1023mol144Boltzmannconstantk1.3806488(13)1023JK1910=8.6173324(78)105eVK1910molarvolume,idealgasatSTPNAk(273.15K)/(101325Pa)22.413968(20)103m3mol1910Wiendisplacementlawconstantb=maxT2.8977721(26)103mK910Stefan-Boltzmannconstant=2k4=60~3c25.670373(21)108Wm2K43600 FermicouplingconstantGF=(~c)31.1663787(6)105GeV2500weak-mixinganglesin2b(MZ)( MS)0.23126(5)yy2:2105WbosonmassmW80.385(15)GeV=c21:9105Z0bosonmassmZ91.1876(21)GeV=c22:3104strongcouplingconstants(mZ)0.1185(6)5:1106 =3.141592653589793238e=2.718281828459045235=0.577215664901532861 1in0:0254m1A0:1nm1barn1028m21G104T1dyne105N1erg107J1eV=1:602176565(35)1019J1eV/c2=1:782661845(39)1036kg2:99792458109esu=1CkTat300K=[38:681731(35)]1eV0C273:15K1atmosphere760Torr101325Pa Themeteristhelengthofthepathtraveledbylightinvacuumduringatimeintervalof1/299792458ofasecond.yAtQ2=0.AtQ2m2Wthevalueis1/128.zAbsolutelabmeasurementsofGNhavebeenmadeonlyonscalesofabout1cmto1m.SeethediscussioninSec.10,\Electroweakmodelandconstraintsonnewphysics."yyThecorrespondingsin2fortheeectiveangleis0.23155(5).
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