[填空题]
The lengths of the sides of a rectangular plate 2 +kl(wygxjr rce-rd ./8 nno8are measured, an(bl *3:bxy7jf3(h iaigmm(qh2jv 2 b nd the diagram shows the measured values with their unc3b( 3 vn:mbyi*7mfq(gj2 x b2ihjl(haertainties. 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 uncertaintzj0yxzdhl3 q uc55k4( ies 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%. 0 zl4x35y 5qdhuck z(jAdding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
