[填空题]
The lengths of the sides of a rectangular plath ys1i vys4*4oe are measured, af3k2)tn w;:ssf vn9 k;1weoi pnd the diagram shows the measured values withso;k stwfwenfpkv) :12 9n 3;i 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 multiplicationtz.;i:a8uoo 9yeu :4 nu nzb/k so the percentage uncertainties need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in the height it is one pi o:z n/eob:zu4.9aun8 utky; art in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
