[填空题]
The lengths of the sides of ti +sexk-e991 d+- j.0um6ct ddicge qa rectangular plate are measuredfatc-tt 2*l;9bdu9 zn, and the diagram shows the measured values witt9 c 2tundtfaz9*l-;bh 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 uncertaint*g cyaqv:s 2+hpyvoc/mw90sx 6ws 24hies 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%. 22v/hs :ms*gc +w9 hyw6 4cvsayxq0opAdding the uncertainties gives 6%.