[填空题]
The lengths of the sides ofk5; u,-ocodbj *jih 7c a rectangular pyibv0 2m ixs,85k5uyn late are measured, and the diagram showsuy0m ,iyksi2vx 558nb the 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 to9j z-hdq3 xst)f;mb+he percentage uncertainties need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in the height it is one part zf)bqjo th-x+ d3ms;9in 25 or 4%. Adding the uncertainties gives 6%.