- #1
Jguth
- 3
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I tryied but failed miserabely, i need to prove this formula!
Archimedes (Buoyant force)
Lets say that a rock is attatched to a string, the string has a tention of 5.0N out of the water, and has a tention of 3.2N submerged in water. Now to find the density of the rock, the formula used is:
p rock=(5.0/5.0-3.2)p water
To explain...
density of rock=(wt in air/ wt in air-wt in water)*density of water
Now i need to prove this formula, i would apreciate any help, thanks
Note:
(p=density)
What i know:
p=mv
Density of water is 1000kg/m^2
I tried many different ways but never got a definite answer
Archimedes (Buoyant force)
Lets say that a rock is attatched to a string, the string has a tention of 5.0N out of the water, and has a tention of 3.2N submerged in water. Now to find the density of the rock, the formula used is:
p rock=(5.0/5.0-3.2)p water
To explain...
density of rock=(wt in air/ wt in air-wt in water)*density of water
Now i need to prove this formula, i would apreciate any help, thanks
Note:
(p=density)
What i know:
p=mv
Density of water is 1000kg/m^2
I tried many different ways but never got a definite answer
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