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Author Question: A piano wire of length 1.5 m vibrates so that one-half wavelength is contained on the string. If the ... (Read 510 times)

Redwolflake15

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on: Aug 6, 2020

Question 1

A piano string of density 0.005 0 kg/m is under a tension of 1 350 N. Find the velocity with which a wave travels on the string.

◦
260 m/s

◦
520 m/s

◦
1 040 m/s

◦
2 080 m/s

◦
4 160 m/s


Question 2

A piano wire of length 1.5 m vibrates so that one-half wavelength is contained on the string. If the frequency of vibration is 65 Hz, the amplitude of vibration is 3.0 mm, and the density is 15 g/m, how much energy is transmitted per second down the wire?

◦
21 W

◦
11 W

◦
5.4 W

◦
2.2 W

◦
1.1 W
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Marked as best answer by Redwolflake15 on Aug 6, 2020

prumorgan

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Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jajajajjaja

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Reply #2 on: Jan 19, 2021
Thanks so much!


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