[填空题]
The lengths of the sides of a r )nx lmvp-k5-/qxqm;w ectangular plat uck 1m ;f :wqsdw+ 3xr-:16k-clfauew)rsk-ge are measured, and the diagram shows the measured values wfxkkrw-:kc e-3awulsf:cq) 6;r wu d+g -1s1mith 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 thpd95 l 9+nlkbre percentage uncertainties need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in 9b k5l drlp9n+the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
