[填空题]
The lengths of the sides of a r0 elbd*:d efq6ectangulabe8 j*vt3;i x7x,hibk r plate are measured, and the diagram shows the measured values with ttbx*87bhxij e i,vk3; heir 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 ne oi2hcp;0kso0 x4n 5s7jm qwh6ed to be added. Uncertainty in length is one part in 50, i.e. 2%; a ;sx4o q60hjs5co7 hwm0k n2ipnd in the height it is one part in 25 or 4%. Adding the uncertainties gives 6%.
Post time 2024-8-21 21:38:19
