[填空题]
The lengths of the sides of a rectangular plate are measured, and the diau5 4 yotyf76n8hnsau.zt-3c1 coo y+xgram shows the measured values with their uncertainties.cy xo+13 -octz 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 +b*yskslyq3u* .nl b4to be added. Uncertainty in length is one part inql*s by.k syb lu4n3*+ 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
