[填空题]
The lengths of the sides ofm hm4;vxzo fe, ,;suep ; 1wst,6ctu+x a rectangular plate are measured, and t-j)-vqm+q 9r1uux skthe diagram shows the measured values with -x jr+umu)vk1-9q tqs 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 uncr21 sd 9od 3cx-ivup1 b:ca1bdertainties 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 the uncertainties od1s dcd: vu a2391bripcxb-1gives 6%.
Post time 2024-8-21 21:38:19
