一道相对论的题目,解答中有句话不理解一只装有无线电发射和接收装置的飞船,正以4/5c的速度飞离地球,当宇航员发射一无线电信号后,信号经过地球反射,60秒后宇航员才收到返回信号.问:当
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![一道相对论的题目,解答中有句话不理解一只装有无线电发射和接收装置的飞船,正以4/5c的速度飞离地球,当宇航员发射一无线电信号后,信号经过地球反射,60秒后宇航员才收到返回信号.问:当](/uploads/image/z/12865393-1-3.jpg?t=%E4%B8%80%E9%81%93%E7%9B%B8%E5%AF%B9%E8%AE%BA%E7%9A%84%E9%A2%98%E7%9B%AE%2C%E8%A7%A3%E7%AD%94%E4%B8%AD%E6%9C%89%E5%8F%A5%E8%AF%9D%E4%B8%8D%E7%90%86%E8%A7%A3%E4%B8%80%E5%8F%AA%E8%A3%85%E6%9C%89%E6%97%A0%E7%BA%BF%E7%94%B5%E5%8F%91%E5%B0%84%E5%92%8C%E6%8E%A5%E6%94%B6%E8%A3%85%E7%BD%AE%E7%9A%84%E9%A3%9E%E8%88%B9%2C%E6%AD%A3%E4%BB%A54%2F5c%E7%9A%84%E9%80%9F%E5%BA%A6%E9%A3%9E%E7%A6%BB%E5%9C%B0%E7%90%83%2C%E5%BD%93%E5%AE%87%E8%88%AA%E5%91%98%E5%8F%91%E5%B0%84%E4%B8%80%E6%97%A0%E7%BA%BF%E7%94%B5%E4%BF%A1%E5%8F%B7%E5%90%8E%2C%E4%BF%A1%E5%8F%B7%E7%BB%8F%E8%BF%87%E5%9C%B0%E7%90%83%E5%8F%8D%E5%B0%84%2C60%E7%A7%92%E5%90%8E%E5%AE%87%E8%88%AA%E5%91%98%E6%89%8D%E6%94%B6%E5%88%B0%E8%BF%94%E5%9B%9E%E4%BF%A1%E5%8F%B7.%E9%97%AE%EF%BC%9A%E5%BD%93)
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