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v = 200 m/s
ditanya : lamda ... ?
jawab : panjang gelombang = v/f
= 200/5
= 40 m
a. fekuensi : 5 Hz
b. cepat rambat gelombang :200 m/s
Ditanya : berapa panjang gelombang?
Jawab :
V/F = 200 / 5
= 40 m
Good Luck....