[填空题]
The lengths of the sides of a rcon+ jek /wly,,7kn+d ectangulat 2,avewgqx*fjw d49n77 jpp1r plate are measured, and the diagram shows the measured values with thw747p29 v,dqe*agx tfw1j pjneir 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 b-z 5xkr-)ihwee added. Uncertainty in length is one part in 50, i.e. 2%; and in the height it is one x-zh-i5kr e w)part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
