When a mass of 180 g is attached to a vertical spring and lowered ...

[asd123]

When a mass of 180 g is attached to a vertical spring and lowered to its equilibrium position, it is found that the spring extends 12 cm.
 
  If the mass is now displaced from its equilibrium position, what is the period of the resulting oscillations? A)
 
  2.2 s
 
  B)
 
  3.7 s
 
  C)
 
  0.69 s
 
  D)
 
  9.0 s
 
  E)
 
  1.5 s

Question 2

The maximum intensity using coherent sources compared to the maximum intensity using random sources for sources of equal strength is that the maximum in the coherent case is
 
  A)
 
  0.707 times the incoherent.
  B)
 
  triple the incoherent.
  C)
 
  the same as the incoherent.
  D)
 
  half the incoherent.
  E)
 
  double the incoherent.

[Kaytorgator]

Answer to Question 1

C

Answer to Question 2

E

[asd123]

Thanks

[Kaytorgator]

Welcome