Brass Wire Wave Speed Calculation

AI Thread Summary
To calculate the wave speed in a brass wire, the formula v = √(T/μ) is used, where T is tension and μ is linear density. The linear density can be derived from the density of brass and the wire's cross-sectional area. The density of brass is given as 8.60×10^3 kg/m^3, and the radius of the wire is 3.35×10^-4 m. After determining the cross-sectional area, the problem can be solved by substituting the values into the wave speed formula. The discussion highlights the importance of converting regular density to linear density for accurate calculations.
K3nt70
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Homework Statement



What is the wave speed in a brass wire with a radius of 3.35×10-4 m stretched with a tension of 120 N? The density of brass is 8.60×103 kg/m^3.

Homework Equations



v = \sqrt{\frac{T}{\mu}}

The Attempt at a Solution



I have no clue about this problem. It gives me regular density but i need linear density in order for the formula to work and i don't know how or if i even can convert reg density to linear. Nor can i find any other relevant equations that would clear it up for me.

cheers
 
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Hi K3nt70.
Try find the cross-sectional area of the string and see if you can see what to do then.
 
Wicked - got it all worked out. Thanks for the hint!
 
Its cool, no problem.
:smile:
 

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