[填空题]
The lengths of the sides of a rectangular plate are measuisjcf2qd;)1 bt iv*/xred, w /8s )z( wbebwq1 ax4holx4ic;p/,be and the diagram shows the measured values with their uncertah4) /wib o;bcleb1x4e /z, wqp(sw8axinties. 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 ,d 5i; +zubqe2 j55kz.h/-mziwcgm ct the percentage uncertainties need to be added. Uncertainty in length is one -iiw55h5 gzq uck;tez, m/m .+bc2d jzpart 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
