[填空题]
The lengths of the sides of a rectanguqjpnimvu 64fgi-swjd(m::7 /ds:t7w z) nw,elar plate are measured, and7 7j /zuypibv; the diagram sho7up ;/bvi 7yzjws the measured 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 ;pv k 9ca1(ft8-3.fa kljszjf so the percentage uncertainties need to be added. Unc9 ja-vpa cf kt(.fj;k831zfsl ertainty 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
