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A piano tuner plays an out of tune A note on his piano and then strikes his 440 Hz tuning fork. He notices a beat of 2 Hz. When he slightly loosens the piano string and plays the note and the fork again the beat goes to 7 Hz. What was the frequency of the string vibration after he loosened it? (a standard A note is 440 Hz)

A piano tuner plays an out of tune A note on his piano and then strikes his 440 Hz tuning fork. He notices a beat of 2 Hz. When he slightly loosens the piano string and plays the note and the fork again the beat goes to 7 Hz. What was the frequency of the string vibration after he loosened it? (a standard A note is 440 Hz)

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881.0 QUESTION 24 A piano tuner plays an out of tune A note on his piano and then strikes his 440 Hz tuning fork. He notices a beat of 2 Hz. When he slightly loosens the piano string and plays the note and the fork again the beat goes to 7 Hz. What was the frequency of the string vibration after he loosened it? (a standard A note is 440 Hz) QUESTION 25 From the diagram which shows pressure / time dependence find the beat frequency. Time is in seconds Click Save and Submit to save and submit. Click Save All Answers to saue all answers. Save All 85 F Sur 立
Transcribed Image Text:881.0 QUESTION 24 A piano tuner plays an out of tune A note on his piano and then strikes his 440 Hz tuning fork. He notices a beat of 2 Hz. When he slightly loosens the piano string and plays the note and the fork again the beat goes to 7 Hz. What was the frequency of the string vibration after he loosened it? (a standard A note is 440 Hz) QUESTION 25 From the diagram which shows pressure / time dependence find the beat frequency. Time is in seconds Click Save and Submit to save and submit. Click Save All Answers to saue all answers. Save All 85 F Sur 立
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