[填空题]
The lengths of the sides of a rectangular plaknx2 +ws.b t4u+i9l nete are.xsq x):l t1px measured, and the diagram shows the measured values with their unxqpx x.1)t:l scertainties. 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 uncertaintierxk fn,,-i6chbr5i zy -a2h h0tx73ijs need to be added. U3aii75fh tbhy 0r- ,n 2, rcix-6xzhkjncertainty in 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
