One end of a very long wire is rigidly fastened to a post. The other end...

One end of a very long wire is rigidly fastened to a post. The other end is attached to an audio speaker which shakes the end of the wire in a direction perpendicular to its length. The wire has a diameter 1.1 mm , a volume mass density of 7800 kg/m³, and is held under a tension of 6.7 N. The speaker creates a wave on the wire with an amplitude 0.56 cm and a frequency of 65.0 Hz .

Part A: Ignoring any reflections of the wave from the post, how much power is transferred from the speaker to the wave?

P = _______________W

Part B: If I double the frequency at which the speaker oscillates, while keeping the power output the same, what is the new amplitude of the wave?

A = ____________cm

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genius_generous answered 1 year ago

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