[Ph��ÃÂÂ] [Từ thăm thẳm lãng quên] [axit va kiem] [Nháºt kà đặng thuỳ trâm] [vuk vukovic endicott college] [ύb] [Robinson Crusoe] [Thiên nhân h�c cÃ] [can you call through imessage to another phone] [flute player hears four beats per second when she compares her note to a fC = 523 Hz tuning fork (the note C). She can match the frequency of the tuning fork by pulling out the tuning joint and lengthening the pipe of the flute slightly. What was the flute player’s initial frequency ff ?]