February 2019 1 16 Report
Perhatikan gambar diatas!

satu gelombang merambat 20 kali getaran dalam 2 sekon. Berdasarkan gambar tersebut,tentukan :
a.Panjang gelombang
b.Periode
c.Frekuensi
d.Cepat rambat gelombang
e.Amplitudo

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