Jawaban:
Penjelasan:
v =...?
v = λ . f
v = 0,4 . 50
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Jawaban:
Opsi D
Penjelasan:
Diketahui :
Ditanya :
v =...?
Jawab :
v = λ . f
v = 0,4 . 50
v = 20 m/s