[填空题]
The lengths of the sides of a rec /-qpi8t sao,-/pztd+s ,bft itangu5uyawh wn2 yf--.v g*klar plate are measured, and the diagram shows the measured values with their un .ahguwyv 2-nk*5fw- ycertainties. 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 dzk,wh*19n u0usgpx5. wit 3lthe percentage uncertainties need to be added. Uncert kw1ux,l3509wnsizh*d.p t ugainty 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
