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ortegavs
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Homework Statement
Ok so 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 loosens the piano string and plays the note again, the beat goes to 4 hz. What was the frequency of the note before he loosened the string? a.438 b. 440 c. 442. d. 444
Homework Equations
f1-f2=beat f
v=square root of T/m/L