Fixed String Question

[pilumnus]

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Hi guys,
I'm stuck on this AAMC question:

"The human vocal cord can be thought of as a fixed string. The length of the cord is 15mm. What is the fundamental frequency of the sound? Assume the speed of the sound is 3 m/s"

I used f = V/2L and plugged in the correct units. However, they used 30mm instead of 15mm. Is there something I'm missing here?

 

[pilumnus]

Oh God I'm an idiot. They just multiplied out the 2... ignore this thread.

 

[daftypatty]

Oh God I'm an idiot. They just multiplied out the 2... ignore this thread.

Just wondering, is this from the aamc guide questions or the FL? I haven't done any of the AAMC stuff yet so I haven't encountered any of the new "biological" physics & chemistry questions yet.

Is this how the new physics/chem questions are asked? If so, I feel a little more reassured b/c I thought the "biological" applications to the physical sciences would be extremely hard

 

[pilumnus]

Just wondering, is this from the aamc guide questions or the FL? I haven't done any of the AAMC stuff yet so I haven't encountered any of the new "biological" physics & chemistry questions yet.

Is this how the new physics/chem questions are asked? If so, I feel a little more reassured b/c I thought the "biological" applications to the physical sciences would be extremely hard

This is from the "AAMC Official Guide" it was a 120 question test (30 per section) of 2015 material.
It was a discrete question, by the way. The passage based questions are pretty damn hard in my opinion. They are heavily based on research-based interpretation. I feel like they are less content based and more based on passage analysis. I did notice most of the physical sciences questions had a biological basis.

 

[pilumnus]

Just wondering, is this from the aamc guide questions or the FL? I haven't done any of the AAMC stuff yet so I haven't encountered any of the new "biological" physics & chemistry questions yet.

Is this how the new physics/chem questions are asked? If so, I feel a little more reassured b/c I thought the "biological" applications to the physical sciences would be extremely hard

Which I feel like could actually be easier - if we had more practice tests. However we only have 1.5 so we're kind of on our own 😛