Sunday

December 21, 2014

December 21, 2014

Posted by **desh** on Tuesday, January 24, 2012 at 5:38am.

- physics -
**drwls**, Tuesday, January 24, 2012 at 6:32amIn the highly viscous "Stokes Law" Reynolds-number region (Re < 0.1), the viscous force is proportional to velocity*diameter*viscosity.

It does not depend upon density.

If the viscous forces are equal instantaneously,

V2/V1 = (D1/D2)*(Visc1/Visc2)

= (1/2)(4/3) = 2/3

This question is fundamentally flawed in my opinion, for this reason. In the steady-state limiting-velocity regime, the viscous forces cannot be equal in this case, since the force ratio must equal the weight (and mass) ratio, which is not 1 in this case.

**Answer this Question**

**Related Questions**

Physics - Two small charged spheres hang from cords of equal length L and make ...

math - if the ratio of the diameters of two spheres is A to B then what is the ...

physics - The densities of two substances are in the ratio 5:6 and the specific ...

PHYSICS - A copper wire and an aluminium wire have length's in the ratio 3:2....

physics - Two small, identical metal spheres contain excess charges of -10.0 x ...

Physics - 7. Two metal spheres are suspended from insulating threads. A ...

Math 11 - I am really stuck at these 4 questions. Pls help: a) Two spheres of ...

physics - Two small metal spheres with masses 2.0 and 4.0 are tied together by a...

Physics - Two identical heavy metal spheres are released from the same height. ...

geometry-finding ratio - Ratio of the heights of two similar cones is 7/9 what ...