document.write( "Question 1208144: One light-year is defined by astronomers to be the distance that a beam of light will travel in 1 year (365 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. \n" ); document.write( "

Algebra.Com's Answer #846347 by josgarithmetic(39616) $\"\"$ $\"About$

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You should be able to identify the necessary conversion factors. The other question and setup shown there should be very helpful.\r
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\n" ); document.write( "\n" ); document.write( "You should find expression $\"365%2A24%2A3600%2A186000%2Amiles\"$ , and then you still need to put into scientific notation, compute, and adjust.\r
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\n" ); document.write( "\n" ); document.write( "1 year---------------How many miles?\r
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\n" ); document.write( "\n" ); document.write( "You should on your own, be able to find:
\n" ); document.write( "How many days in a year;
\n" ); document.write( "how many hours in a day;
\n" ); document.write( "how many minutes in an hour;
\n" ); document.write( "how many seconds in an hour. \n" ); document.write( "

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