[填空题]
The lengths of the sides 1ky:mzj( ak3b ity8hpit.xlqxi16 b+y/mo 2 8of :mds4owt:qylcb0(qljz v fn 9f7d 1m4.0y 3nda rectangular plate are measured, and the diagram shows the meavyd07dq:041 fsl(c qynl9wmt.m 3b4 jdf : oznsured values with 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 multiplic b;mmsfw:ih3d8ftb t(5p01zhation so the percentage uncertainties need to be added. Uncertainty 8sd p fmih 5wbh;1fz 30mtbt:(in length is one part in 50, i.e. 2%; and in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.