Срочно !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question

Срочно !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Answer 1

σ=0.072
h=2.5*10^-2    po=10^3    d=?

h=2*σ/(po*g*r)

d=2*r

d=4*σ/(po*g*h)=4*0.072/(10^3*10*2.5*10^-2)=1.15*10^-3 м (1,15 мм)

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