[填空题]
The lengths of the si ;gwofwj w6jf85i * ro*/3qnpsdes of a rectangular platw:l;k1m qhq u*e are measured, and the diagram shows the measured values with their uncw1qq lh:*km ;uertainties. 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 mr yaj.ih (i1vhe0y-s,)+chw 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 thcj 1h)s hirimy+,ae.h 0w-vy(e uncertainties gives 6%.
Post time 2024-8-21 21:38:19
