document.write( "Question 631103: Musical notes can be represented by the trigonometric function y=sin(2pi qx) where q is the frequency of the note and x is the time in seconds that the note is played. the equation y=1.5sin(524pi t), where t represents a sound wave produced by the note middle C. What is the value of q, the musical frequency of middle C?
\n" ); document.write( "(1)1.5
\n" ); document.write( "(2)262
\n" ); document.write( "(3)262 pi
\n" ); document.write( "(4)524 pi \n" ); document.write( "
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Musical notes can be represented by the trigonometric function y=sin(2pi qx) where q is the frequency of the note and x is the time in seconds that the note is played. the equation y=1.5sin(524pi t), where t represents a sound wave produced by the note middle C. What is the value of q, the musical frequency of middle C?
\n" ); document.write( "(1)1.5
\n" ); document.write( "(2)262
\n" ); document.write( "(3)262 pi
\n" ); document.write( "(4)524 pi
\n" ); document.write( "--------------
\n" ); document.write( "It's 524pi/2pi = 262 Hz
\n" ); document.write( "That's middle C based on the international A-440 Hz scale.
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\n" ); document.write( "Not sure about --- y=sin(2pi qx) where q is the frequency of the note and x is the time in seconds that the note is played.
\n" ); document.write( "x = time in seconds the note is played?? \n" ); document.write( "
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