[填空题]
The lengths of the s t(e(-(c7liaibjy+ l10w gsj z ,7gls;z6z0ell)2i bl+likm7cko psq) l.s4tides of a rectangular plate are measured, and the diagram shows the measured values with their uncertain 0bl+zlg7l to;)2,lz lks.46cp si 7sie)kmqlties. 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 nednx 1iq 1 ppwf gjh(is8*)7am/ed to be added. Uncertainty in len/d ain1i)*qwp1 fhs(j7mpxg8gth is one part 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
