What is the least dense part of a sound wave?
peak

rarefaction

trough

compression

Not really sure on this question. Thinking its rarefaction?

Question

What is the least dense part of a sound wave?
       peak

       rarefaction

       trough

       compression

Not really sure on this question. Thinking its rarefaction?

anonymous · Answer

@ybarrap

anonymous · Answer

It is a rarefaction, a trough is for EM waves, for sound waves, the equivalent would be a rarefaction so yes, you're correct

ybarrap · Answer

you and @greenleaf800073 are correct: http://en.wikipedia.org/wiki/Rarefaction

anonymous · Answer

awesome! :)

anonymous · Answer

could u guys help me out with one more question?

anonymous · Answer

Yes

anonymous · Answer

sorry openstudy froze on me but I was able to answer the second question :)