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Verified answer
GELOMBANGDari gambar grafik kiri, diperoleh panjang gelombang
λ = 0,04 m
Dari gambar grafik kanan, diperoleh periode gelombang
T = 0,2 s
Kecepatan rambat gelombang
v = λ / T
v = (0,04 m) / (0,2 s)
v = 0,2 m/s ← jwb