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1、工程力学（第四版）--静力学北京科技大学、东北大学第一章习题下列习题中，凡未标出自重的物体，质量不计。接触处都不计摩擦。1-1试分别画出下列各物体的受力图。1-2试分别画出下列各物体系统中的每个物体的受力图。volunteersmanagement.Peacevolunteerworkisanewthing,theunitstobeinaccordancewithapersonofafile,afileina,theestablishmentofpeacevolunteersarchives.Oneisbeforethe
2、endofthepolicestationtosetupnotlessthan30peopleinthetownshipofpeacevolunteerserviceteam,pennants,volunteerbadgesandotherequipmenttoproducetheirown,specificissuescanandpropagandasection.Thesecondisthepolicestationmonthlyplanningofnotlessthantwotimesofpeacevoluntee
3、rspropagandaofpublicsecurityorpreventivesecurityactivities,fullymobilizethepowerofthemasses,HongYangspiritofvolunteerism,transfersafepositiveenergy.Third,thepolicewillhavetocombinethepolicereal.jointpublicitydepartmentorthepolicestation,amonthtoorganizecarryoutmo
4、rethanoncetohighlightthethemeofpeacevolunteerserviceactivities,suchas,thelegalsystemtohighlightthelegalpublicityandeducationoftheyouththeme,Interpol,tohighlightthenarcotics,anti-theft,anticheatingtheme,investigationtoprominentanti-counterfeiting,antiillegalfund-r
5、aising,financialfraudprevention,antiembezzlementetc.themeandsecuritytoprominentfireworksgovernance,managementofhazardouschemicals,publicsecuritymanagement,networksecuritytogiveprominencetonetworksecurityandothertopics,householdregistration,entryandexittohighlight
6、thethemeofconvenienceservicesetc.,thepolicecanalsoaccordingtotherequirementsoftheirownresponsibilitiesandthe工程力学（第四版）--静力学北京科技大学、东北大学1-3试分别画出整个系统以及杆BD，AD，AB（带滑轮C，重物E和一段绳索）的受力图。1-4构架如图所示，试分别画出杆HED，杆BDC及杆AEC的受力图。1-5构架如图所示，试分别画出杆BDH，杆AB，销钉A及整个系统的受力图。1-6构架如图所示，试分别画出杆
7、AEB，销钉A及整个系统的受力图。1-7构架如图所示，试分别画出杆AEB，销钉C，销钉A及整个系统的受力图。1-8结构如图所示，力P作用在销钉C上，试分别画出AC，BCE及DEHvolunteersmanagement.Peacevolunteerworkisanewthing,theunitstobeinaccordancewithapersonofafile,afileina,theestablishmentofpeacevolunteersarchives.Oneisbeforetheendofthepolices
8、tationtosetupnotlessthan30peopleinthetownshipofpeacevolunteerserviceteam,pennants,volunteerbadgesandotherequipmenttoproducetheirown,specificissuescanandpropaga
