[填空题]
The lengths of the sides of a rectangular plate are measured, and the di9psh dpu vjf:u -w(jdz*8x9 ac ,:2tqragram on1dao0)zhcx ,/yt4 m shows thy0/, nd1cx )o4 tamzohe measured values 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 multiplica5 ,.n4lhy lj60sp0meqay4 dh wtion so the percentage uncertainties need to be added. Uncertainty in length is one part in 50, i.e. 2%; and 6h ,pyd4 sw0q4m hey50ajn l.lin the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
