72. Jika gelombang merambat dengan kecepatan 8 m/s, frekuensi gelombangnya adalah . . . Hz. a. 150
b. 200
c. 250
d. 300
=> Noted {pakai cara}
mksii
b. 200
c. 250
d. 300
=> Noted {pakai cara}
mksii
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