[填空题]
The lengths of the si(np;7 7zk//ew e -mtpiq izit(des of a rectangular plate are measured, and the diagra.50eq pkzwfx(l-k 2:jq gyjz-o41wv dm shows the z y(1 - dj0fww-qopvglq :.zejk2 kx45measured 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 multiplication so the percentage uncertainties need to r 9c,d+ ol.fa:zly5frbe added. Uncertainty in length is one part in 50, i.e. 2%; and in the height it is one part in 25 or 4%. Adding the uncer,dllc:.fry 59 ofarz+ tainties gives 6%.
Post time 2024-8-21 21:38:19
