[填空题]
The lengths of the sides of a rectangular plate are measured, and the e: w7dkmjjpu0w4e :; jauoa/y 8jjs;i/sd5 5mdiagram shows the measured values with 8i5dyjms ;/ s/au5oaj 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 akzbmz/:k8t6 the percentage uncertainties need to be added. Uncertainty in length is ok8zkta6z bm:/ ne 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
