How long does ti take for the sunlight to reach the earth?翻译并给出答案

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How long does ti take for the sunlight to reach the earth?翻译并给出答案
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How long does ti take for the sunlight to reach the earth?翻译并给出答案
How long does ti take for the sunlight to reach the earth?
翻译并给出答案

How long does ti take for the sunlight to reach the earth?翻译并给出答案
太阳光到达地球要多久?
8分19秒

阳光到达地球要多长时间?

阳光到达地球要多长时间

翻译:阳光从太阳射到地球需要多长时间?
答案:496.7S
太阳与地球间的距离为1.49*10^11m
光速为3*10^8m/s
所以t=s/v=1.49*10^11m/3*10^8m/s
=496.7s