[填空题]
The lengths of the sides of a rectangular plate arerbu9,6j d) rkgg:ab 44aecd*)xknli/ measured,g7*7-/5quhiuiwy nh y and the diagram shows the measured values with their uncert*ynwiih uyh 5 /-g7u7qainties. 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 unnzmw/iw9g-cg)( 7vx p certainties 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 w9w7z x)-v/m(gpci gnthe uncertainties gives 6%.
Post time 2024-8-21 21:38:19
