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Verified answer
GELOMBANGDari persamaan simpangan
y = sin (20t + 3x)
dan bentuk bakunya
y = A sin (ωt - kx)
diperoleh
• ω = 20 rad/s
• k = 3 /m
kecepatan rambat gelombang
v = ω / k
v = 20/3
v = 6⅔ m/s ✔️