[填空题]
The lengths of the sides of a rect 3bw tx ;.-cblo)ulr)t,qhbbs/.2p xpangular plate are mea o3hisy19 u.tr )c:y/steen l-sured, and the diagram shows the measured values with their uncerta .3ylsei)s-tt1e yco9: n/u rhinties. 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 tpmj62 , i+vunyo be 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 thvmj i+uypn, 26e uncertainties gives 6%.
Post time 2024-8-21 21:38:19
