When driven by a 120 Hz vibrator, a string has transverse waves of 31 cm wavelength traveling along it. if the tension in the string is 1.2 N, What is the * ?mass of 70 cm of the string 0.217 kg O 0.217*10^-3 kgO 62.1*10^-6 kg O 0.217*10^-6 kg O 62.1*10^-3 kg O 62.1 kg O
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