[填空题]
The lengths of the sidj 9ls9ic1 7czues of a4 nwfmdds:bb)n h8*6 y rectangular plate are measured, and the diagram shows the measured values with their uncertaint)mf dn4 bs*8dbhy :n6wies. 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 permy wx-gim:99j(nnst : centage uncertainties 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%. Adding the uncernw(gnix:mys9t j9 m: -tainties gives 6%.
Post time 2024-8-21 21:38:19
