[填空题]
The lengths of the sidesee5ub(xocspm:g ztp 8r8wul;2;- m :o of a rectangular a ut70ztnjpb7yw9dr :qt39x7 plate are measured, and the diagram shows the measure7j9bzqw t7x39yp ran tu d0:t7d values 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 the percentage uncertainties nee 4 jk:bo/084kanamyil d to be added.bij4 n k:4l/my08koaa 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%.