One light-hour is defined by astronomers to be the distance that a beam of light will travel in 1 hour. If the speed of light is 186,000 miles per second, how many miles are in a light-hour?
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Step 1: There are 60 minutes in an hour and 60 seconds in a minute, so there are 60 * 60 = 3600 seconds in an hour. Show more…
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Astronomy One light-year is defined by astronomers to be the distance that a beam of light will travel in 1 year $(365 \text { days). If the speed of light is } 186,000$ miles per second, how many miles are in a light-year? Express your answer in scientific notation.
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