[填空题]
The lengths of the sides of a rect lz i/;yyvcrw n6(1 mst:90rcaangulaa,a0.v* m7xf/a wk arzr plate are measured, and the diagram shows the measured values with their uncertazf* ,/arkx07a aw mav.inties. 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 multipli*cc523 o o 4ffhzp22 b2oc;p:mkjrpx dcation so the percentage uncertainties need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in the heij2*rozcp m2 o 2xcp 5hcf3o k:fpd4b;2ght it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
