[ qu%A8%A2n thi%A8%BAn th] [iç içe kökler] [Quản lý dá»± án xây dá»±ng] [0353092097] [qua bến nguyên hùng] [BàkÃÂp thế lá»±c] [flute player hears four beats per second when she compares her note to a fC = 523 Hz tuning fork (thenote C). She can match the frequency of the tuning fork by pulling out the tuning joint and lengthening thepipe of the flute slightly. What was the flute player’s initial frequency ff ?] [木星第12衛星アナンケ] [%B5%DB%D3%F2%B9%AB˾] [pháp luáºÂÂt đại cương]