Answer:
the frequency of this mode of vibration is 138.87 Hz
Explanation:
Given;
length of the copper wire, L = 1 m
mass per unit length of the copper wire, μ = 0.0014 kg/m
tension on the wire, T = 27 N
number of segments, n = 2
The frequency of this mode of vibration is calculated as;

Therefore, the frequency of this mode of vibration is 138.87 Hz
That seems like a statement more than a question. Where's the question?
The answer will be letter B because after work people need some energy
buenos dias senor, en ingles por favor/per favore ???
It's i<span>onic Compunds hope it helps!</span>