[填空题]
The lengths of the sides omfnbc.b+h0 l g uj m;4ab;6/lqf a rectangular plate are measured, and t)vo,2 rsl*x 4bc yppn1he diagram shows the measured values with their uncertaintieslnb4 p yc2ov)p,srx1*. 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 s2 mh ejk94v4u1mg:yw+ grpm7 do the 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 theemy +mp g24r 4hj:k7wvgu d9m1 uncertainties gives 6%.