nomor 3 & 5
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1234567891011121314151617181920
Gelombang
Diketahui:
- v = cepat rambat bunyi = 350 m/s
- t = waktu = 2 s
- f = frekuensi = 1.000 Hz
- v = cepat rambat = 320 m/s
- t = waktu = 5 s
Ditanya:
- s = jarak ?
- n = banyak gelombang ?
Jawaban 3
s = v × t
s = 350 × 2
s = 700 m ✔
Jawaban 5
f = n/t
n = f × t
n = 1.000 × 5
n = 5.000 gelombang ✔
Penjelasan:
3.
x = v. t
= (350) . ( 2)
= 700 m
5.
v = f × lamda
320 = 1000 × lamda
lamda = 320/1000 = 0,32 m
f = n/t
n = f × t
= 1000 × 5
= 5.000 gelombang
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