[填空题]
The lengths of the siz)m+c )xmsv d5g2vc l*des of a rectangular plate are measuredi 4i,2s y;zzyj, and the diagram shows the measuredy 2ys4j zi;iz, 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 multiplication so the percentage uncertainties need tibv *v :saq4pv5ywi0;o 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 t0;swv *yiv:b 54v qpaihe uncertainties gives 6%.
Post time 2024-8-21 21:38:19
