Question: A string 3 m long and fixed at both ends is vibrating in its third harmonic. The maximum displacement of any point on the string

A string 3 m long and fixed at both ends is vibrating in its third harmonic. The maximum displacement of any point on the string is 4 mm. The speed of transverse waves on this string is 50 m/s.

(a) What are the wavelength and frequency of this wave?

(b) Write the wave function for this wave.

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