[填空题]
The lengths of the sides bi c+xjyr .l 2-xbe--sof a recrkvkt2y, r88ftangular plate are measured, and the diagram shows the measured va2kr k rt,v8fy8lues 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 st -ckg/udp ;b0qgj( :3 8nthpfo 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%. Addinp3td;h0 gu -:pt8(nf/cqkb gjg the uncertainties gives 6%.