[填空题]
The lengths of the sides 4 +aw/4vyn qwaof a rectangular plate are measured, and the diagram y9bipuq7u42ngy:i. t shows the measured values with their un9uqiiubyyg27 p. t 4n:certainties. 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 uncertainties n2c/oi ; guiii(eed to be added. Uncertainty i;(i ciiio2 /ugn 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
