The speed of light is 3x10^8 meters per secound.The sun is approximately 230,000,000,000 meters from mars .How many secounds does it take for sunlight to reach mars?

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asked Nov 17, 2016 74.9k views

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Sean Cogan · Answer 1 · 2016-11-24T07:19:02+0000

you got to use dimensional analysis...

( 230,000,000,000 Meters ) x ( Seconds / 3*10^8 Meters ) = ANSWER

The meters cancel out and you are left with Seconds. divide and that's your answer :)

The speed of light is 3x10^8 meters per secound.The sun is approximately 230,000,000,000 meters from mars .How many secounds does it take for sunlight to reach mars?

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