SOLUTION: The sun is approximately 1.496 * 10^8 kilometres from earth. If light travels at three hundred million metres per second, how long does it take for light to travel from the sun to

Algebra ->  Equations -> SOLUTION: The sun is approximately 1.496 * 10^8 kilometres from earth. If light travels at three hundred million metres per second, how long does it take for light to travel from the sun to       Log On


   



Question 128058: The sun is approximately 1.496 * 10^8 kilometres from earth. If light travels at three hundred million metres per second, how long does it take for light to travel from the sun to the earth ?
Found 2 solutions by solver91311, stanbon:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
1.496%2A10%5E8 kilometres is 1.496%2A10%5E11 metres. Three hundred million metres is 3.0%2A10%5E8 metres. 1.496%2A10%5E11%2F3.0%2A10%5E8=498.67, so it takes about 499 seconds, or 498.67%2F60=8.31 minutes for the light to arrive at the earth, roughly speaking.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The sun is approximately 1.496 * 10^8 kilometres from earth. If light travels at three hundred million metres per second, how long does it take for light to travel from the sun to the earth ?
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First:
Change the kilometers to meters.
(1.496x10^8 km)(1000 meters/km) = 1.496x10^11 meters
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Divide distance by the speed of light:
(1.496x10^11 meters m) / (3.00x10^8 m/s) = 4.9867x10^2 seconds
= 8.111 minutes
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Cheers,
Stan H.