Archimedes Principal

  • Thread starter grapeape
  • Start date
  • #1
10
0

Homework Statement


A spherical aluminum ball of mass 1.48 kg contains an empty spherical cavity that is concentric with the ball. The ball just barely floats in water.
A. Calculate the outer radius of the ball.

B. Calculate the radius of the cavity


Homework Equations


Buoyant Force = density of fluid * Volume of object *g


The Attempt at a Solution

 

Answers and Replies

  • #2
Shooting Star
Homework Helper
1,977
4
If the ball barely floats in water, then it's effective density must be vey nearly equal to water. So, equate the mass of the ball to the buoyant force. Also, vol of water = vol of the ball.
 
  • #3
Shooting Star
Homework Helper
1,977
4
You'll need the density of Al.
 

Related Threads on Archimedes Principal

  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
12
Views
729
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
6
Views
615
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
13
Views
3K
  • Last Post
Replies
3
Views
3K
Top