Constructive/Destructive Sound Waves

  • #1

Homework Statement


Link to problem: http://img147.imageshack.us/my.php?image=soundqj3.png


Homework Equations



No idea, One of the reasons I'm asking. >.>

The Attempt at a Solution



Ok, I have no idea how to even begin this problem. I need a hint in the right direction, or just what the formula I need here. Thanks in advance.
 

Answers and Replies

  • #2
Never mind, I figured out what the relationship between the wavelength and the interferance.

http://physics.ucsd.edu/students/courses/winter2008/physics1c/documents/1.3Sound.notes.pdf [Broken]

That site helped a lot.
 
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