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The speed of light is about 3 . 10^8 meters/second. How far is a lightyear?
(How many meters does light travel in one year?)
3.1 x 10^11
6.1 x 10^13
9.5 x 10^15
4.2 x10^16

1 Answer

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3.1 x 10^11 is the answer
User Udoyhasan
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