[填空题]
The lengths of the sides of a rectu1n33ew kq,c+, n0 ftgiojg2bangulargd.,cu/zl) b lj*o1* :ojrr4/z vdi pj plate are measured, and the diagram shows the measured values withjdzj* j *l:/d rp 1gu,.ilrbc4)oov/z 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 uncertaing)tba oil 79:xq8lhp0ties need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in t7:bi0hlgq9t aox8l)phe height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
