Question

Calcolate the terminal velocity with which an air bubble of diameter 0.8 mm rises in a liquid of
viscosity 0.250 Ns/
m and density 0.95 x 103 kg/m3. Density of air is 1.3 kg/m3.
(1)0.27 *10-3 m/s
(3)0.27* 10 m/s
(2) 0.135 x 10-4 m/s
(4) 0.135 x 10-3 m/s​

Answer 1

0.27*10-3 m/s is the density of air