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A student uses a 2.00-m-long steel string with a diameter of 0.90 mm for a standing...

A student uses a 2.00-m-long steel string with a diameter of 0.90 mm for a standing wave experiment. The tension on the string is tweaked so that the second harmonic of this string vibrates at 29.0 Hz . (ρsteel=7.8⋅10^3 kg/m^3)

If you wanted to increase the first harmonic frequency by 60 % , what would be the tension in the string?

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