[填空题]
The lengths of the sides .16s3 8r p8mrnohv upfofcl;mp2o -j(3ng.p k oiuixh /4 a rectangular plate are measured, and the diagram shows the measured values with their uncertai mg;p2pnh3cjiox ( -l/k.uo 4inties. 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 uncertainti6wlmp1i*14rdcy ob ur lt3 f tr;:47jxes need to be added. Uncertainty in length is one part in 50, i.e. 2%; and in the height 6iol3 prbru t*4: d7c1;1fxm4ywrljtit is one part in 25 or 4%. Adding the uncertainties gives 6%.