[填空题]
The lengths of the sides of a rectangular plate arg rx79qgm- t gi+75dtde measured, and the 4qfrx83gq-if+*s5c9 iqqhe i diagram shows the measured values with their uncertaiqiq*hce3-f+9ifx r qiq54g8snties. 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 be:v e iaz s vpp/40i+3 6isr/)v.rv0bhu y)glwu added. Uncertainty in length is one part in z).u:h+ w r/ iu)v/birvavy46sls3egi0 p pv050, 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
