1. dari gambar diperoleh:
2,25λ = 45 cm → λ = 45/2,25 = 20 cm
T = t/n → T = 5/2,5 → T = 2 s
v = λ/T → v = 20/2 = 10 cm/s → v = 0,1 m/s
jadi Jawaban A.
2. dari gambar diperoleh
λ = 30 cm
v = λ/T → 60 = 30/T → T = 0,5 s
T = t/n → 0,5 = 60/n → n = 120 gelombang
jadi Jawaban D
3. dari gambar diperoleh
T = t/n → T = 7/3,5 → T = 2 s
v = λ/T → 30 = λ/2 → λ = 60 m
jarak AB = 1,25λ → AB = 1,25×60 = 75 m
jadi jawaban B
semoga dapat membantu ....
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9/4x = 45
x = 20 cm = 0,2
2½ T = S
5/2 T = S
T = 2 S
√ = x/t
√ = 0,2/2
√ = 0,1 m/s
jadi jawabannya adalah a
#semoga membantu#
1. dari gambar diperoleh:
2,25λ = 45 cm → λ = 45/2,25 = 20 cm
T = t/n → T = 5/2,5 → T = 2 s
v = λ/T → v = 20/2 = 10 cm/s → v = 0,1 m/s
jadi Jawaban A.
2. dari gambar diperoleh
λ = 30 cm
v = λ/T → 60 = 30/T → T = 0,5 s
T = t/n → 0,5 = 60/n → n = 120 gelombang
jadi Jawaban D
3. dari gambar diperoleh
T = t/n → T = 7/3,5 → T = 2 s
v = λ/T → 30 = λ/2 → λ = 60 m
jarak AB = 1,25λ → AB = 1,25×60 = 75 m
jadi jawaban B
semoga dapat membantu ....