• Support PF! Buy your school textbooks, materials and every day products Here!

Archimede's Principle

  • Thread starter bobred
  • Start date
  • #1
173
0

Homework Statement


An unknown fluid is placed in a bottle and then placed in a beaker of water where it displaces x amount of water. The unknown fluid is then frozen into a block and a greater proportion of this substance is now submerged, what does this say about the change in density?


Homework Equations





The Attempt at a Solution


Am I right in thinking the density increases, there is no mention of what happens to the volume of the substance or the volume displaced???
 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
25,832
250
hi bobred! :smile:

well, you titled this Archimedes' Principle, how how about using the principle in your answer? :wink:
 
  • #3
Yeah! bobred read the the statement of Archimede's principle carefully, you'll surely be able to solve then.
 
  • #4
173
0
At equilibrium I have

[tex]\frac{V_0}{V}=\frac{\rho}{\rho_0}[/tex]

what is confusing me is what happens to the unknown substance when it is frozen, does it expand or contract and therefore change the density [tex]\rho[/tex]
 

Related Threads on Archimede's Principle

  • Last Post
Replies
5
Views
6K
  • Last Post
Replies
7
Views
3K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
13
Views
3K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
6
Views
537
  • Last Post
Replies
12
Views
627
Top