[填空题]
The lengths of the sidet b 2+bi0wfi,e(hjy5gs of a j5v 1fggmj5ds8 2uhj4 rectangular plate are measured, and the diagram shows the measured values with their uncertf2gjvu8g 4 1msjjh 55dainties. 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 uncerenn 4w rsii ru-9o( so5u-23hztainties need to be added. Uncertainty in length is one pa4i r uz-s oi293n( -5nsohuewrrt in 50, i.e. 2%; and in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
