October 2018 2 29 Report
Sebuah gelombang bunyi merambat di udara dengan kecepatan 360 m/s. jika panjang gelombang bunyi 25 cm frekuensinya adalah ,,,,
a. 14,4 HZ
b. 90 Hz
c. 1.440 Hz
d. 9.000 Hz

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