document.write( "Question 1207558: 1. One light-year is defined by astronomers tobe 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. \r
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document.write( "2. How long does it take a beam of light to reach Earth from the Sun when the Sun is 93,000,000 miles from Earth? Express your answer in seconds, using scientific notation. \n" );
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Algebra.Com's Answer #845491 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! One light-year is defined by astronomers to be the distance that a beam of light will travel in 1 year (365 days). \n" ); document.write( "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( "1.86(10^5) * 365 * 24 * 3600 = 5.87(10^12) miles \n" ); document.write( "; \n" ); document.write( "2. How long does it take a beam of light to reach Earth from the Sun when the Sun is 93,000,000 miles from Earth? Express your answer in seconds, using scientific notation. \n" ); document.write( " |