What fractional increase in the tension
Two identical piano wires have a fundamental frequency of 600 Hz when kept under the same tension. What fractional increase in the tension of one wire will lead to the occurrence of 6.0 beats/s when both wires oscillate simultaneously?
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A 31 kg gun is standing on a frictionless surface. The gun fires a 54.2 g bullet with a muzzle velocity of 321 m/s. The positive direction is that of the bullet. Calculate the momentum of the gun immediately after the gun was fired.
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What is the initial resonance angular frequency W of the cicuit? What is the rms current through the circuit at resonance, rms I?
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