A 60.0-cm long string with a mass 8.00 g has a tension 200 N. ...

[jhjkgdfhk]

A 60.0-cm long string with a mass 8.00 g has a tension 200 N. What is the fundamental frequency of this string?
 
  A)
 
  38.7 Hz
 
  B)
 
  1500 Hz
 
  C)
 
  56.7 Hz
 
  D)
 
  102 Hz
 
  E)
 
  3.75 Hz

Question 2

Two traveling waves have the forms z1 = A sin(kx - t), z2 = A sin(kx + t ) Express their superposition in the form of a standing wave.
 
  A)
 
  2A cos(kx) cos( t )
  B)
 
  2A sin(kx) cos( t )
  C)
 
  2A sin(kx) sin( t )
  D)
 
  A sin(kx )2 - (t )2
  E)
 
  2A cos(kx) sin( t )

[Dominic]

Answer to Question 1

D

Answer to Question 2

B

[jhjkgdfhk]

Excellent

[kilada]

Gracias!