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时间:2018-09-15
《大学物理实验 作业参考答案》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、《误差理论》作业参考答案1、(1)74.63±0.05cm或746.3±0.5mm(2)7.25±0.01cm或72.5±0.1mm(3)42.6±0.2s(4)27.6±0.2℃(5)2.734±0.001v2、(1)2位(2)7位(3)5位(4)6位(5)5位(6)2位3、(1)299300=2.99300;983±4=;0.00400=4.000.0045210.000001=;32476=3.2476;(2)15.48=1.548=1.548(3)=312.670±0.002=(3.1267±0
2、.00002)=(3.12670±0.00002)(4)17.9±0.1=0.298±0.002=(2.98±0.02)×10-1min4、(1)N=10.8±0.2(2)首位数码“0”不是有效数字,未位数码“0”是有效数字,正确答案是四位有效数字。(3)28=2.8280=28.0(4)L=(3.8±0.2)(5)0.02210.0221=“0.00048841”0.000488(6)5、(1)=(4.113+4.198+4.152+4.147+4.166+4.154+4.132+4.170)=33.
3、232=4.154cm={[(4.154-4.113)+(4.154-4.198)+(4.154-4.152)+(4.154-4.147)+(4.154-4.166)+(4.154-4.154)+(4.154-4.132)+(4.154-4.170)]}0.00904~0.009cm=±=4.154±0.009cm或=±=4.15±0.01cm=100%=0.22%或=100%=0.23%注:使用计算器时计算过程中有效数字的位数可以不考虑,最后结果应按照教材P7的“不确定度取位规则”和“测量有效数字取位
4、规则”。(2)、=(2.904+2.902+2.900+2.903+2.900+2.904)==2.902167cmconstructionqualityacceptanceandassessmentRegulation(ProfessionalEdition)(DL/T5210.2-2009~DL/T5210.8-2009);1.9thequalitycheckoutandevaluationofelectricequipmentinstallationengineeringcode(DL/T5161
5、.1-2002~5161.17-2002);1.10thenormsofconstructionsupervision,theelectricpowerconstructionsupervisionregulations7={(0.002+0.000+0.002+0.001+0.002+0.002)}=0.0008cm±=2.9022±0.0008cm=100%=0.028%(3)=(2.010+2.010+2.011+2.012+2.009+1.980)=2.0053cm=[(0.0047+0.004
6、7+0.0057+0.0067+0.0037+0.0253)]=0.005cm±=2.005±0.005cm=100%=0.25%6、(1)(2)(3)㏑=㏑+㏑-㏑(-)=+=-(4)㏑=㏑+㏑+㏑+㏑+2㏑-2㏑-㏑constructionqualityacceptanceandassessmentRegulation(ProfessionalEdition)(DL/T5210.2-2009~DL/T5210.8-2009);1.9thequalitycheckoutandevaluationofe
7、lectricequipmentinstallationengineeringcode(DL/T5161.1-2002~5161.17-2002);1.10thenormsofconstructionsupervision,theelectricpowerconstructionsupervisionregulations77、==0.00735×11.083≈0.081≈0.09∴11.08±0.09100%≈0.81%8.解:;∴±=4.0±0.2100%=5%±=2.5%9.四则运算法(1)478
8、.2(2)49.27+3.462-3.4——————————481.66245.87∴478.2+3.462=481.7∴49.27-3.4=45.9(3)834.5×23.9———————75105constructionqualityacceptanceandassessmentRegulation(ProfessionalEdition)(DL/T5210.2-2009~DL/T5210.8-2009);1.9thequalitych
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