[填空题]
The lengths of the sides of a rectangular plate are measured, andl txm 8b)gg)u-sr/hs+)ov n b2g w;8ugz ,;gei the diagr63zlrkar +m8 ram shows the measured values wrl 6a3zrr+8k mith 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 uncertaintiesy)80l,zo pw dd need to be added. Uncertainty 0dp do8w,z)ylin 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
