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λ = 25 cm
Ditanya = V = ....?
Jawab = V = λ x f
= 25 x 400
= 10.000 cm/s
= 100 m/s
frekuensi=400 Hz
dit=v..............?
v=lamda·frekuensi
v=25·400
v=10.000 cm/s²
v=100m/s²
naik 2 tangga di bagi 100
maaf kalo salah