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**1. Homework Statement**

Find the length of string and speed of wave in string if frequency of given wave is 850 hz and the wavelength is 0.173m? The string is in a tube that is closed at both ends.

**2. Homework Equations**

v=(T/(m/L)^.5

**3. The Attempt at a Solution**

I found the speed using v=frequency*wavelength.

How do i find the length of the string?

i dont know the mass or the tension