[填空题]
The lengths of the sides ox6fb p 7ve 6.9bql:xtaf a rectangulbw/o +:,v)a k 9jafrpfar plate are measured, and the diagram shows the measured values with their uncertaintie)k: arv 9/f+a,fwjobps. 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 multiplicas4wxy.r nn(jg/h,oz-pu 9t)z tion so the percentage uncertainties need to be added. Uncertainty in length is one part in 50, i.e. 2%; ar .huwyj-o)g/s 4px ( nt,z9nznd in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
