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A string of length L=8m is connected to a wall at both ends. The tension on the string is To = 8· 10³ N and the mass density is H = 60 gr/m. The string is vibrating in the first harmonic. The maximal height of the string at point 2m away from the wall is y(2) = 0.3 m. What is the frequency of the first harmonic? (in Hz) 2177 What is the amplitude of the wave (in m)?