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22 April, 20:44

Light travels at the speed of approximately 3.0 * 108 meters per second. Find the time in minutes required for light to travel from the sun to Earth (an approximate distance of 1.5 * 1011 meters).

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  1. 22 April, 21:13
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    Speed = distance / time = > time = distance / speed

    speed = 3x10^8 x 60 = 180x10^8 m per minute

    time = 1.5x10^11/180x10^8 = 150x10^9/180x10^8 = 5/6x10 = 8,3 minutes
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