問題詳情
3.(20) The drag characteristics of a blimp{小型軟式飛艇)5 m in diameter and 60 m long are to be stijdjed in wind tMpne). |f the spe^cl of the blimp through still air is 10 m/s, and if a 1/10 scale model is to be tested, what airspeed in the wind tunnel is needed for dynamically similar conditions? Assume the same air pressure and temperature for both model and prototype.
參考答案
答案：B
難度：非常簡單0.97996
統計：A(4),B(489),C(2),D(2),E(0)
用户評論
【用戶】ki
【年級】高三下
【評論內容】皮亞傑認為面對新經驗時，個體會採取 【同化】與【調適】維持認知的平衡狀態。