Young's Modulus of guitar string

[amblove]

Homework Statement

A guitar string of diameter 0.6 mm and length 0.82 m is subject to a tension of 153 N. If the string stretches an amount 0.36 mm, what is Young's modulus of the string?

Homework Equations

Y=Stress/Strain
Stress=F/A
Strain=Amount of stress/Original Length

The Attempt at a Solution

Stress=153/(pi*(0.0003^2)
Strain= 0.00036/0.82

I converted all the units to meters, but it is still not right and I'm not sure what I'm doing wrong.

 

[nasu]

What is not right? And how do you know it?

 

[alzabroo]

There is an unmatched parentheses on your calculation for stress, but other than that nothing appears to be wrong.