Posted by **Luc** on Thursday, March 1, 2012 at 1:53am.

What is the volume of a metal which weighs 28g less in kerosene and the densty is 800 kgm3 than it does in air

- physics -
**drwls**, Thursday, March 1, 2012 at 11:57am
What do you mean by

" 800 k/gm^3 than it does in air " ?

The external fluid does not affect the density.

Did you mean to write:

"What is the volume of a metal which weighs 28g less in kerosene does in air, if the density of kerosene is 800 kg/m^3?

That question can be answered.

The metal will certainly sink to the bottom, and there will be an upward buoyancy force of (0.028 kg)*g = 0.274 N. This equals (kerosene density)*g*V, so

V = 0.274/(800*9.8) = 3.5*10^-5 m^3 = 35 cm^3

## Answer This Question

## Related Questions

- Physics - What is the change in the volume of 1.0 L kerosene, when it is ...
- Physics - I have a metal sphere that weighs 0.28g, what is the most likely ...
- Chemistry - hmmm...I just can't seem to get it. It looks like I got it right up ...
- Chemistry - The Specific Gravity of kerosene is 0.786/ What is the volume ...
- physics - a metal object is suspended from a spring balance scale. the scale ...
- Astronomy - The volume of a ball is given in terms of its radius by V=4π3R3...
- Chemistry - O.k. I am confused. So here is what I did. Mass of empty flask plus ...
- physics - a piece of metal of density 7800kgm-3 weighs 20N in air. Cal. The ...
- Chemistry - The Specific Gravity of kerosene is 0.786. What is the volume ...
- Chemistry - The Specific Gravity of kerosene is 0.786. What is the volume ...

More Related Questions