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Mechanics of Materials, Brief Si Edition.pdf

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Mechanics of Materials, Brief Si Edition.pdf

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Mechanics of Materials, Brief Si Edition.pdf

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文档介绍:PRINCIPALUNITSUSEDINMECHANICSInternationalSystem(SI)eleration(angular)radianpersecondsquaredrad/eleration(linear)meterpersecondsquaredm/s2Areasquaremeterm2Density(mass)kilogrampercubicmeterkg/m3(Specificmass)Density(weight)newtonpercubicmeterN/m3(Specificweight)Energy;workjouleJNиmForcenewtonNkgиm/s2ForceperunitlengthnewtonpermeterN/m(Intensityofforce)FrequencyhertzHzsϪ1Lengthmeterm(baseunit)Masskilogramkg(baseunit)Momentofaforce;torquenewtonmeterNиmMomentofinertia(area)metertofourthpowerm4Momentofinertia(mass)kilogrammetersquaredkgиm2PowerwattWJ/s(Nиm/s)PressurepascalPaN/m2Sectionmodulusmetertothirdpowerm3StresspascalPaN/m2Timeseconds(baseunit)Velocity(angular)radianpersecondrad/sVelocity(linear)meterpersecondm/sVolume(liquids)literL10Ϫ3m3Volume(solids)cubicmeterm3SELECTEDPHYSICALPROPERTIESPropertySIWater(fresh)/m3massdensity1020kg/m3Aluminum(structuralalloys)weightdensity28kN/m3massdensity2800kg/(sealevel)(sealevel,°latitude)/␮:Theuseoftheprefixeshecto,deka,deci,,,previouseditions,changestocurrenteditions,andalternateformats,pleasevisithered