[填空题]
The lengths of the sides of a rectangular plate are measured, and the diagram ;5.ogkwss;t)x()klwmy e0 jvshy tvs me0.lw);xk5s )owgj;k(58jg tyx.;aut ows the measured values wit;y.8ut jx agt5h their uncertainties. What is the percentage error in the area of the plate? %. (Remember to exclude the % symbol with your answer.)
参考答案: 6
本题详细解析: Area involves a multiplication so the percentage uncertainties need to be ad07-y. e ysryj*. mqwmzofn8+aded. Uncertainty in length is one part in 50, i.e. 2 ysmw0e-a7nrm jy z.yqfo 8*.+%; and in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.