document.write( "Question 515805: How big is the clock has to be for the tip of the second hand at 100miles/hour?\r
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\n" ); document.write( "\n" ); document.write( "How fast the sun is moving in mile/hour? what would be the speed of the sun?
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Algebra.Com's Answer #344177 by Edwin McCravy(20059)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "The formula is \r\n" );
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document.write( "vT = rw\r\n" );
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document.write( "or\r\n" );
document.write( "     vT \r\n" );
document.write( "r = 覧予r\n" );
document.write( "     w\r\n" );
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document.write( "The angular velocity w of the second hand is \r\n" );
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document.write( "60\"%28revolutions%29%2F%28hour%29\"\r\n" );
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document.write( "Each revolution is 2p radians.\r\n" );
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document.write( "So 60\"%28revolutions%29%2F%28hour%29\" = \"60%2A2pi\"\"radians%2F%28hour%29\" = \"120pi\"\"radians%2F%28hour%29\" \r\n" );
document.write( " \r\n" );
document.write( "     vT \r\n" );
document.write( "r = 覧予r\n" );
document.write( "     w\r\n" );
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document.write( "     \"100\"\"miles%2Fhour\"\r\n" );
document.write( "r = 覧覧覧覧覧覧 \r\n" );
document.write( "     \"120pi\"\"radians%2F%28hour%29\" \r\n" );
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document.write( "r = \"100%2F%28120pi%29\"\"miles\" = \"100%2F%28120pi%29\"\"%22%D7%22\"\"5280feet\" = 1400.5635 feet.\r\n" );
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document.write( "That's the length the second hand would have to be for the tip of it\r\n" );
document.write( "to be traveling 100 mi/hr.   That's the only one I'll do for now.\r\n" );
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document.write( "Edwin

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