[填空题]
The lengths of the sid 2p3nzmfwx 1.les of a rectangular plate are met jp(5;n4yhbfasured, and the diagram shows the hybn(4pt;f5j measured 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 uncertaint-2nfhy s + na-hz3ns05oolc ;bies need to 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 the uncertain-cnoo s-3b+za0n5; ns hfhl 2yties gives 6%.