[填空题]
The lengths of the sides of a rectangular plate ardia2h t ;i c.h*hsya;(pi)i*m-mps ls5;za2y .t c4d qe measured, and the diagram shows the measured values with -5z4t)iyispcsmmla 2* . p;qd 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 multi:s.b 1de9u rwxplication so the percentage 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%. Adding uwdex:.bs1r9 the uncertainties gives 6%.