Question: A violinist places her finger so that the vibrating section of a 1.0 g/m string has a length of 30 cm, then she draws her

A violinist places her finger so that the vibrating section of a 1.0 g/m string has a length of 30 cm, then she draws her bow across it. A listener nearby in a 20°C room hears a note with a wavelength of 40 cm. What is the tension in the string?

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