A steel wire in a piano has a length of 56.8 cm and a mass of 5.0 g. To what
tension must this wire be stretched in order that the fundamental vibration
correspond to the note of middle C (f = 261.6 Hz)?
u*(f2L)^2 = F
The Attempt at a Solution
I'm not sure if that's the right equation or if I substituted my values correctly.