[填空题]
The lengths of the sidesc /. d *z5eilk2zgnnv+ of a rectangular plate are measured, and the diagram dat84 f/fgwvz0c wt 6hj)f/t,shows the measurew/ja4,tcf) /tht8g zw0d v6ff d 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 percent;z8eehh 3lrb* age 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%. Az b;r*hh8le3 edding the uncertainties gives 6%.