[填空题]
The lengths of the sides of a rectangular plate i-8 y p5:ntjrxo, maw7are measured, and the dax av g:fc*,(n,ef huk7wduif3 dg4((iagram shows the measured values with hg(4d x,*ufkaand3cu:(,figw7e v (f their 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 multiplication so the percentage uncertainties xs9rg)r zb961xlfo t4need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in the height it is one1rgbs94o)rltf9z x 6x part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
