Solve the all parts of given problem:
Problem: A guitar string is 75.0 cm long and has a mass of 8.75 g. The speed of sound is 344 m/s in the room in which the guitar is being played. The guitarist wants to produce a sound of wavelength 3.35 cm when the string vibrating in its third harmonic.
Part A: To what tension must he adjust the string?
Part B: In its fundamental mode of vibration, what is the frequency of the sound produced by the guitar?
Please show all work and steps to find the frequency of the sound produced by the guitar.