[填空题]
The lengths of the sides of a rectangular plate;n afifqb5r i(0ush+5 are measured, and the diagravtslt,w0)07d gc*he-q:z,bkyh i 6k:oq;z ke m shows the measured values with their uncertaintd;g 0yzt:to*ewz -eqvb6i qhk lkc0:s, )k7,hies. 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 bee 33,j jsg7.ci3gbvb 7tl*cwj added. Uncert 73j jgc vbtc33sjg*i7wb,. elainty 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
