地球离月球的距离约为3.84x10^8m.无线电波的传播速度约是3x10^8m/s,
地球离月球的距离约为3.84x10^8m.无线电波的传播速度约是3x10^8m/s,
问在地球发出的无线电波大约多长时间能传到月球上,.
问在地球发出的无线电波大约多长时间能传到月球上,.
物理人气:201 ℃时间:2019-11-02 03:45:19
优质解答
t=s/v=3.84x10^8m/(3x10^8m/s)=1.28s
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