[填空题]
The lengths of the sides of a rectash ha4bf2,k,sz2v8y ai9 i a/r.hzhy. ngular plate are measured, and r5p icar9jrpx u*5:9pq+xzp: the diagram shows the measured valup: xrapu5p9+9ri pjr5*zqc:x 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 slg 7rd, *y( mt(x5 fist+xzb x*fa),qpo the percentage uncertainties need to be added. *s7a m*pz)f gx x ldf+bqti,(r,5(tyx 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%.
Post time 2024-8-21 21:38:19
