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Author Question: A guitar string is supposed to have a fundamental frequency 256 Hz. It currently has a fundamental ... (Read 110 times)

Sportsfan2111

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A guitar string is supposed to have a fundamental frequency 256 Hz. It currently has a fundamental frequency 248 Hz. What percentage increase in tension is required to bring the guitar string into tune?
 
  A)
 
  3.13
 
  B)
 
  6.56
 
  C)
 
  1.60
 
  D)
 
  6.15
 
  E)
 
  3.23

Question 2

Three identical 50-kg masses are held at the corners of an equilateral triangle, 30 cm on each side.
 
  If one of the masses is released, what is its initial acceleration, if the only forces acting on it are the gravitational forces due to the other two masses? A)
 
  3.7  10-8 m/s2
  B)
 
  2.5  10-8 m/s2
  C)
 
  1.9  10-8 m/s2
  D)
 
  4.2  10-8 m/s2
  E)
 
  6.4  10-8 m/s2



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AISCAMPING

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Answer to Question 1

B

Answer to Question 2

E





 

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