A string with both ends held fixed is vibrating in its third harmonic. The waves have a speed of 192 m/s and a frequency of 240 Hz. The amplitude of the standing wave at an antinode is 0.400 cm. How long is the string? (Give your answer in m.) Calculate the amplitude at a point on the string a distance of 40.0 cm from the left end. (Give your answer in cm.) Calculate the amplitude at a point on the string a distance of 20.0 cm from the left end. (Give your answer in cm.) Calculate the amplitude at a point on the string a distance of 10.0 cm from the left end of the string. (Give your answer in cm.) Calculate the maximum speed of the string at a point 10.0 cm from the left end. (Give your answer in cm/s.)

A string with both ends held fixed is vibrating in its third harmonic. The waves have a speed of 192 m/s and a frequency of 240 Hz. The amplitude of the standing wave at an antinode is 0.400 cm. How long is the string? (Give your answer in m.) Calculate the amplitude at a point on the string a distance of 40.0 cm from the left end. (Give your answer in cm.) Calculate the amplitude at a point on the string a distance of 20.0 cm from the left end. (Give your answer in cm.) Calculate the amplitude at a point on the string a distance of 10.0 cm from the left end of the string. (Give your answer in cm.) Calculate the maximum speed of the string at a point 10.0 cm from the left end. (Give your answer in cm/s.)

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