[填空题]
The lengths of the sik mh5ly reei2j ,/c/z0des of a rectangul)r m ibg2hxdu0m5f l;+ar plate are measured, and the diagram shows the measured valuer2ghml) 0;5bx +umdfis 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 multiplication so the) zfgflk,cw,. percentage uncertainties need to be added. Uncez,gf ,wfc .l)krtainty 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%.
Post time 2024-8-21 21:38:19
