M = 300г
V= 3мл
g= 20H/кг
p= 3кПа
h =?
MilkaKamilka5
2
15.03.2020 10:48
0
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1
p=pgh
h= p/pg
p=m/v= 3×10^-3×3×10^-6= 9×10^-9 кг/м^3
h= 3×10^3Па/9×10^-9 кг/м3×20Н/кг= 0,016×10^-6 м= 0,016 мкм