[填空题]
The lengths of the sidewfo3s5/ ur4;n ofslq 8s of a*y3w,dq *h aqjxc1: ohw (r5wx rectangular plate are measured, and the diagram shows the measured values with their uncr:jxcyq (a*hdww whx5,1o *3q ertainties. 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 q 2wneld +ik43cyoj:uf.5eie 5bu7p* 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 cdbil3oi5pf7j :.ee4nuy+k q ue w5*2 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
