Question about resonating in a closed tube.

[yokialana]

Homework Statement

A closed tube resonates at 440 Hz when it is 0.195 m long and 0.586 m long. Determine the speed of sound. How do I do this?

Homework Equations

wavelength=4L
v=fw

The Attempt at a Solution

v= 440 (4L) I'm just not sure how to use both lengths given, can someone help me out?

 

[truesearch]

You do not know that wavelength = 4L.
The wavelength can be 2(L/1), 2(L/2), 2(L/3), 2(L/4), 2(L/5)...etc
You also know that v = f x wavelength. And v does not change
The values you have been given should enable you to write down 2 simultaneous equations from which you can get the answer.