[填空题]
The lengths of the sides of a rectangular plate are measured, and the dial 5du lqlqb:fj0 .hi/o:cz7f -gram ( efb7ff 3 f,vhrwkg2ln9/ tn(shows t/ f,gt2r( fe39kb fnlfh7wv (nhe 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 so the percentage uncertainties need to16mmm,or2m/ l biawl * 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 th moab ,r2l61*mlmm/iwe uncertainties gives 6%.
Post time 2024-8-21 21:38:19
