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MECHANICAL WAVES (Standing Waves on a String (principle of superposition…

- - - - points at which the string never moves
        
        A = 0 (DESTRUCTIVE)
    - - points at which the amplitude of string motion is greatest
        
        A = 2A (CONSTRUCTIVE)
  - - - incident wave to the left
    - - reflected wave to the right
  - - - sin kx = 0
- - - - displacement direction of motion
    - - displacement = direction of motion
- - - - Y(x,t)=A(x,t)+B(x,t)
      - Inteference
        
        Constructive
        
        Amplitude increases
        
        Destructive
        
        Amplitude decreases
    - - Fixed end
        
        The direction of amplitude inverts
      - Free end
        
        The direction of amplitude remains the same
- - - - Average Power
      - Maximum instantaneous value
      - Power (at certain time and displacement)
      - Wave Intensity