[填空题]
The lengths of the sides of a rectanl )t.-t, zain+evg**:t+4xsbvpu dgvgud (f6/4lzz m-adbv3(z boa gh/lar plate are measured, and the diagram shows the measured values mbvaddg/f b64z(o/za-hl (3zwith 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 uncertainties ntmn2ao-cn 3yd 7 o ualv9*3j.wnpj9l4eed 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 give9*32tcodv 3 am.jwl p n4u7l9y- oannjs 6%.