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# Time for light to travel from earth to the moon

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The speed of light in vacuum is approximately 3 * 10^8 m/s. Calculate how long light takes to travel from the Earth to the Moon (distance 3.8 * 10^5km) and how long light takes to travel from the the sun to the Earth (distance 1.5 * 10^8km)?

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Solution calculates time for light to travel from earth to the moon and from the the sun to the Earth.

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Speed of light in vacuum is approximately equal to 3 * 10^8 m/s

Time = distance / speed

how long light takes to travel ...

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