[填空题]
The lengths of the sides of a r 8+ 3irz:1h yp7c eh3kt1kixtp,(.jat+x4yf: rvl whamlx(e- ectangular plate are measured, and the diagram shows the measured values with tyal: mtxxf-(e4ah w(v. jrl, +heir 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 uncermgwy*g; dadp3+e:s ;xtainties need to be added. U:ddp3* ;mgesaw y;g +xncertainty in length is one part in 50, i.e. 2%; and in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
