Jumat, 24 Juli 2009

XII.A.Nerin

Bahasan Tugas Pemahanan Dasar Gelombang

Diket :
jarak AB = 60 cm terdapat 1,5 gelombang
AB = 1,5λ
60 = 1,5λ
λ = 60/1,5
λ = 40 cm
frekuensi = 2 Hz
Dit : cepat rambat gelombang?
Jwb :
v = λf
v = 40 cm x 2 /s
v = 80 cm/s

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