[填空题]
The lengths of the sides of a rectangu 1udbru+lb 4;q6im76ljz:cxdn e *nm, lar plate aresbql6 krz n,dk.zv6 *ds7 zd (e93hb+e measured, and the diagram shows the measured value6.kdbdhz6ked7zs9sl bz n+r *v,3 (q es with 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 thn -p0 +py v2skq:wfk:he percentage uncertainties need to be added. Uncertainty in length is one part in 500kshvqp - fp+2 :nw:yk, i.e. 2%; and in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.