Question

an air bubble of radius 1×10^-3m rises through water what will be the terminal velocity? the coefficient of viscosity of water is 1.2×10^-3 pl​

Answer 1

Explanation:

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Answer 2

Answer:

Explanation:

Given,

Terminal velocity=3.5 mm/s

9η

2r  

2

(ρ)g

​  

=3.5 mm/s

9η 2×10  −4  ×1.75×10  3  ×9.8

​  

=3.5×10  −3  m/s

η=  9×3.5 2×1.75×10

     2  ×9.8  Ns/m  2

 η=108.88 Ns/m  2

 η≈109 Ns/m  2