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What value must you know to calculate how much a light-year represents?
Wiki User
∙ 14y ago
A "light year" is the distance that light travels in one year. Light travels so fast that the speed of light is measured in miles per second or km per second.
You probably already know how many seconds are in a minute (60), how many minutes are in an hour (60), how many hours are in a day (24), and how many days are in a year (365.24). So if you knew the speed of light, you could multiply all those numbers together and figure out how far light travels in a year.
The speed of light is 186,000 miles per second or 300,00 kilometers per second.
Wiki User
∙ 14y ago
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