[填空题]
The lengths of the sides of a rectangular plate arera w+o y5,fbtut3- da0 measured, and thrf,g3t- ekc6 fe diagram shows the m-3ct 6f r,egkfeasured 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 tkwa, n,xp/hh4he 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 in 25 or 4%. Adding the uncer,4n/k,hwp xhatainties gives 6%.