[填空题]
The lengths of the sides v,zkz y, b.;:eqngy:: aktiu1 of a rectangular plate are measured, an; ngz o:w-yut4d the diagram shows the measured valu on;g4t: z-uywes with 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 uncertas:r7yt(f0byg) gl / tpb3q l3cinties need to be added. Uncertainty in length isqg)g ttl0/f(bryc3:syb7l p3 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
