[填空题]
The lengths of the sides of a rectangulfodw-*isz3 k6w3 f -mz e-k4tr(-5niqv xzm +par plate are measured, and the diagram shows the measured values wi(t+5 mrxv-qnizp4 ek- th 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 uncertainties need to bvu l,b+2 hs ez/ j4zg0e+wlms,e added. Uncertainty in length is one partl,g +usb0ev+2 w,/z4mlsej h z in 50, i.e. 2%; and in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
