101 Brilliant Things For Kids to do With Science

101 Brilliant Things For Kids to do With Science

Fisika Quizzz terlampir difoto pakai cara/penjelasan​

Quizzz terlampir difoto pakai cara/penjelasan​

Jawaban:

B. 36 cm/s

Penjelasan:

Banyak gelombang = 1,25 gelombang

waktu total tempuh gelombang = 2,5 s

..

Panjang gelombang :

1,25 . λ = 90

λ = 90/1,25

λ = 72 cm

...

periode gelombang :

1,5 . T = 2,5

T = 2,5/1,25

T = 2 s

..

cepat rambat gelombang :

v = λ/T

v = 72/2

v = 36 cm/s

opsi B

semoga membantu

answer by Tee Kay

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