fluida

pipa kapiler berdiameter 0.6 mm dimasukan dalam cairan . apabila cairan dalam pipa naik 5 cm , tentukan tegangan permukaan cairan , ro :1,6 , g :10 , teta 60

Default Asked on February 15, 2016 in Fisika.
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1 Answer(s)

diameter = 0.6 mm
jari-jari (r) = 0.3 mm = 3.10-4 m
h = 5 cm = 5.10-2

h = 2. γ. cos θ / ρ.g.r
5.10-2 = 2.γ . cos 60o / 1,6. 10. 3.10-4
5.10-2 = 2.γ. 1/2 / 48.10-4
γ = 5.10-2 . 48.10-4
γ = 2,4 .10-4 N/m

h = kenaikan/penurunan permukaan zat cair dalam pipa
γ = tegangan permukaan
θ = sudut kontak
ρ = massa jenis zat cair (kg/m3)
g = percepatan gravitasi (m/s2)
r = jari-jari pipa kapiler

Train Answered on February 15, 2016.
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