[填空题]
The lengths of the sides of a rm/0yh0t4 c6 ryedznz c/z5e( jectangular plate are measured, and7tp-y8yyp8p k ghh/.re *m c5d the diagram shows th/ y75ey.pptpgym-*hrc 88 hdke measured 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 uncertai- ubc+ qjq7 js+*2o 5avvg1eg )gheey2nties need to be added. Uncertaio75ug c jebve 1j*yqa2+g)- sqev hg+2nty 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%.