What should be the average velocity of water in a tube of radius 0.005 m. So that the flow is just turbulent? The viscosity of water is 0.001 PaS.

Explanation

Here `D=0.010m`,
`eta=0.001Pas,rho=1000kgm^(-3)`
For flow to be just turbulent,
`R_(e)=3000`
`thereforev=(R_(e)eta)/(rhoD)`
`=(3000xx0.001)/(1000xx0.010)=0.3ms^(-1)`