the speed of light is 3.0x10^8 m/s. how long does it take light to reach the earth from the sun, which is 1.5x10^11m away?
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You are watching: The speed of light is 3.00 x10 8 This question can be solved using the timeless equation of motion: distance = velocity * time. We have actually 2 recognized parameters and one unknown parameter; however, in order to settle the difficulty we should initially rearrange the equation to settle for time: time = distance / velocity.

distance = 1.5x10^11m ...

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This question can be addressed using the classic equation of motion: distance = velocity * time. We have actually 2 recognized parameters and one unwell-known parameter; however, in order to deal with the trouble we have to first rearrange the equation to deal with for time: time = distance / velocity.

distance = 1.5x10^11mvelocity = 3.0x10^8 m/s

Substituting into the equation:

time = (1.5x10^11m)/( 3.0x10^8 m/s) = 500 seconds

Therefore, light travelling at 3.0x10^8 meters per second takes 500 seconds (8 minutes, 20 seconds) to reach the Planet, which is 1.5x10^11 meters ameans from the sunlight.

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