What Is the Wave Speed in a Brass Wire with a Radius

Multiple Choice

What is the wave speed in a brass wire with a radius of 0.500 mm stretched with a tension of 125 N? The density of brass is 8.60 × 10³ kg/m³.

A) 0.121 m/s
B) 100 m/s
C) 136 m/s
D) 500 m/s
E) 68.8 m/s