[填空题]
The lengths of the sides of a rewtw.1n o 3f5 ,rxl,t0q5iqdtz+m-vg cctangular plate are measured, and the diaa4g+ u pgal4b1xti4 ,jgram sh,txibu+4a gag 14 p4ljows 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 the percentage unc0f3d. e;9si 7kabf;/fogvzt o ertainties 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 uncertainv sdaff ;/bo; e3ig 0kfot.z97ties gives 6%.