The terminal velocity of a steel ball of 4 mm in diameter falling through a glycerin of viscosity 3.3 poise, given relative density of steel is 8, relative density of glycerin is 1.3 is

Q. The terminal velocity of a steel ball 2 mm in diameter falling through glycerin is $44\times {10}^{-2}cm/s$ (Given that specific gravity of steel = 8, specific gravity of steel =8, specific gravity of glycerin a 1.3, viscosity of glycerine 8.3 poise.)

Q. Find the terminal velocity of a steel ball of diameter $0.2cm$ when it falls through a tube filled with glycerin.$(g=9.8m/s^2$,density of steel $=8000kg/m63$,density of glycerin $=1.33g/c{m}^3,\eta =8.33$ poise $=0.833Ns/m^2$)

Q. A small metal ball of diameter $4mm$ and density $10.5g/c{m}^3$ in dropped in glycerine of density $1.5g/c{m}^3$. The ball attains a terminal velocity of $8cm/\sec$. The coefficient of viscosity of glycerine is

Q. A metal ball of radius 2mm and density 10.5gmcm${}^{-3}$ is dropped in glycerine of coefficient of viscosity 9.8 poise and density 1.5 gm cm${}^{-3}$.The terminal velocity of the ball in cm $s^{-1}$ is:

Q. If ball of steel (density $\rho =7.8{cm}^{-3}$) attains a terminal velocity of $10cm{s}^{-1}$ when falling in a tank of water (coefficient of viscosity ${\eta }_{water}=8.5\times {10}^{-4}Pa.s$) then its terminal velocity in glycerin ($\rho =1.2g{cm}^{-3}\eta =13.2Pa.s$) would be nearly: