[藁谷 読み] [スシãƒãƒ¼] [cô gái mù phá bom nguyên tá»] [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] [nguyá»…n duy hinh] [뮬바드 디시] [Vạn váºt váºn hà nh như thế nà o] [giải mã mê cung] [l,s] [nháºÂÂÂÂÂt ký tháÂÃ]