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erisaicha12
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1 Jawaban
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1. Jawaban Anonyme
Nomor 49
h = 2γ cos θ / (ρgr)
= 2(0,68 N/m)(cos 120°) / [(13600 kg/m³)(10 m/s²)(4 x 10⁻⁴ m)]
= -0,0125 m = -12,5 cm
Tanda negatif menunjukkan zat cair turun dalam pipa.
Nomor 50
FA = W
ρzc g Vb tercelup = ρb g Vb total
ρzc / ρb = Vb total / Vb tercelup
Vb total / Vb tercelup = (1,4 g/cm³) / (0,77 g/cm³) = 20/11
Vb total / Vb tercelup = h total / h tercelup
20/11 = 10 cm / h tercelup
h tercelup = 5,5 cm
h muncul = h total - h tercelup
= 10 cm - 5,5 cm = 4,5 cm