[填空题]
The lengths of the sides of a rect3xo6jm5mp p. gangul ; )vnuol.cx,mar plate are measured, and the diagram shows the measured values with their un.; vcl,o xunm)certainties. 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 multiplicatiogbrd 0daleqn 9 btl,-9+qe x;+n so the percentage 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 uncertainties gives 6%9x ,0eqr9;+b g nellta q-+ddb.
Post time 2024-8-21 21:38:19
