[填空题]
The lengths of the sides pg9ub i; ;g:lwof a rectangular lj.f a7(d)uzqplate are measured, and the diagram shows the measured values with tz fa.7j)uqd(l heir uncertainties. 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 multipvdl n ;oi1ya.4mkoo .rgbjp 15e*5e*m2hz hp:lication so the 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 or 4%. Adding the uh4ebj5lmppon ;*5i1e ord2hm : go.a vy*zk.1ncertainties gives 6%.
Post time 2024-8-21 21:38:19
