[填空题]
The lengths of the sides of a rectangular plate azac c o8.*u)lyre mpan , yesx,ktd 7xc* +7pb+cd,easured, and the diagram shows the measuredd t,pk*x x+b7,,ndyp+ eccs7a 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 multiplicaty osp/u +dw2n.ion so the percentage uncertainties need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in the height it is one part in 25 ospd 2ny.u/+o wr 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
