Jawaban:
Penjelasan:
18. V = 1400 m/s
t = 0,4 s
S = 1/2.v.t
1/2×1400×0,4
280m
19. 1s = 5 suku kata
-> 3 suku kata = 60:5×3 =0,36
S = 1/2×v×t
1/2 × 350 ×0,36
63m
20. Frekuensi semakin besar 1/5 dari frekuensi pertama
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Jawaban:
Penjelasan:
18. V = 1400 m/s
t = 0,4 s
S = 1/2.v.t
1/2×1400×0,4
280m
19. 1s = 5 suku kata
-> 3 suku kata = 60:5×3 =0,36
S = 1/2×v×t
1/2 × 350 ×0,36
63m
20. Frekuensi semakin besar 1/5 dari frekuensi pertama