Angular momentum cannot be conserved if A) the angular ...

[Beheh]

Angular momentum cannot be conserved if
 
  A)
 
  the angular acceleration changes.
  B)
 
  the angular velocity changes.
  C)
 
  there is a net force on the system.
  D)
 
  the moment of inertia changes.
  E)
 
  the net torque is not zero.

Question 2

Fig. 15-2 shows the displacement of a wave at a given position as a function of time and the displacement of the same wave at a given time as a function of position. Determine the frequency of the wave.
 
  A)
 
  4.0 Hz
 
  B)
 
  0.50 Hz
 
  C)
 
  3.0 Hz
 
  D)
 
  0.33 Hz
 
  E)
 
  0.25 Hz

[Joy Chen]

Answer to Question 1

E

Answer to Question 2

E