[填空题]
The lengths of the sidesbvjtif47a5rsrwt+sn+5 : q,j of a rectangular plate are me5jsq. lul 5x cxi c-hj*1; :xrl6 i.euxo.x6teasured, and the diagram show x *:.l;le.coihj5xtu5. surx6l- xj ce6x1qis 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 sz:/2gct6mc4 ezs4rced wu m)l3pc ,5co 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 the uncertainties git3:6sp5 gz zl)er ecc m/42dm,wu4c ccves 6%.