[BàQuyết Bán Hàng Thành Công] [Các dÃÃââ] [LÒ¡� »â� �¹ch SÒ¡� »� Israel] [chết vì] [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 ?] [tạo láºÂÂp mô hình] [vàng vàhai cô gÃÃâ�] [gá»ÂÂi tôi ở má»™t thế giá»ââ‚] [Doanh Nghiệp Tá»± HÃÃ�] [西华师范大学本科教学质量报告]