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=0,25m×400hz
=25m×4hz(jika koma dihilangkan 0 jga dihilankan)
=10m/s²
λ = 25 cm = 0,25 m
Dit : v ?
Jwb:
v = f x λ
= 400 Hz x 0,25 m
= 100 m/s
maaf ya kalau salah