[填空题]
The lengths of the sides of a rectangular plate are meadj9at ,mx5d lcmt gi 0y9)k:n.sured, and thetw3 9wl/y-l fk diagram shows the measured values with their uncyl /wl wkt3f9-ertainties. 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 ne 5cyz6:xiata:f*-ekred 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 uk5 artc fz*e6:ax-i :yncertainties gives 6%.
Post time 2024-8-21 21:38:19
