[填空题]
The lengths of the sides of a rectangular plate are mter3gsk+-mr ap+(8 o ueasuredr* yl1.s+ 3 vubpr:0blcm0af t, and the diagram shows the measurc uval +s t0l3b*:1 bf0y.rmpred 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 to be q xb 4+h92*qud0 db y: 8yxdpufjjqs0/added. Uncertainty in length is one part in 50, i.e. 2%; aj8d4+hj dpf*y b9 2xqq0 udu xbs/0qy:nd in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
