16

Biology with MasteringBiologyâ„¢ (8th Edition)

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  MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question.  1) 
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An open  organ pipe is  tuned to a  given  frequency. A  second pipe  with both  ends open  resonates  with twice  this  frequency.  What is the  ratio of the  length of the  first pipe to  the second  pipe? 
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1)  _______  A) 
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B) 
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C) 
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.5 
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D)  4   
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A violin  with string  length 32 cm  and string  density    resonates  with the first  overtone of  an organ  pipe with  one end  closed. The  pipe length  is   What  is the tension  in the string? 
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2)  _______  A)  4 1 00  5 6 N 
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450 N  D) 
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1000 N  E) 
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110 N    3) 
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Two  harmonic  waves of the  same  frequency  and phase  but of  different  amplitudes  move in  opposite  directions on  a string. A  periodic  series of  maxima and  minima on  the string are  observed.  What is the  ratio of the  maximum  displacement  at a  minimum  position to  that at a  maximum  position, if  one  amplitude is  52% of the  other? (This  is called the  standing  wave ratio.) 
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3)  _______  A) 
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48% 
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B) 
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0.0% 
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C) 
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52% 
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D)  0. 3  
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A  4.0 g  string,  0.36  m long, is  under  tension. The  string  produces a  500 Hz tone  when it  vibrates in  the third  harmonic.  The speed of  sound in air  is    In this  situation, the  wavelength  of the  standing  wave in the  string, in SI  units, is  closest to: 
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4)  _______  A) 
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0.90 
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B) 
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0.54 
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C) 
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0.36 
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D) 
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This document was uploaded on 04/16/2010.

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