A bass guitar string is 89cm long with a fundamental frequency of 30Hz.

What is the wave speed on this string?

= 53.4 m/s

Explanation:

Velocity of a sound is given by the formula;

Velocity = Frequency * 2 (Length)

Frequency = 30 Hz

Length = 89 cm, equivalent to 0.89 M

Therefore;

Velocity = 30 * 2 * 0.89

= 53.4 m/s

Thus; the velocity or the speed of sound is 53.4 m/s