document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=985121>Question 985121</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A phonograph record is 12\" across.<BR>\n" );
document.write( "An outer non-playing area 1\" in width.<BR>\n" );
document.write( "A non-playing central area 4\" in diameter.<BR>\n" );
document.write( "An average of 90 grooves per in.\r<BR>\n" );
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document.write( "Determine distance the needle travels when the record plays once.\r<BR>\n" );
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document.write( "12 - 1 - 4 = 7\"\r<BR>\n" );
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document.write( "I don't think that is correct. Where did I make the error(s)? \r<BR>\n" );
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document.write( "The needle travels across the radius, not diameter.<BR>\n" );
document.write( "12\" diameter=6\" radius<BR>\n" );
document.write( "6\" - (1\" wide non-playing area) - (2\" non-playing central radius) = 3 inches<BR>\n" );
document.write( "ANSWER: The needle travels 3 inches. </SPAN>\n" );
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