問題詳情
31.月球表面的重力加速度為1.6 m/s2 ，而月球的半徑為1.7×106 ，如果一個人造衛星要在月球表面的低空軌道運行，則其週期需約為下列何者？ 
參考答案
答案：B
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)
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