Calculate Density of Solid Object Floating in Water

  • Thread starter Thread starter omgitsmonica
  • Start date Start date
  • Tags Tags
    Density Volume
AI Thread Summary
To calculate the density of a solid object floating in water, it is essential to understand that the object displaces a volume of water equal to the submerged portion of its volume. Since 54% of the object's volume is submerged, it must have a density less than that of water, which is 1 g/cm³. The density of the object can be determined using the principle of buoyancy, where the weight of the displaced water equals the weight of the object. Without knowing the mass or exact volume, the density can be inferred to be approximately 0.74 g/cm³, as it must be less than water's density. Understanding these principles clarifies the relationship between buoyancy and density for floating objects.
omgitsmonica
Messages
22
Reaction score
0

Homework Statement


A solid object floats with 54% of its volume beneath the surface of the water. What is the object’s density? Give answer in g/cm3.


Homework Equations


Density = mass/ volume


The Attempt at a Solution



I know that the density must be more than one, because the object is floating somewhat, but I don't know how to calculate what the density is, exactly. If anyone has a better formula for this problem, I'd much appreciate it.
 
Physics news on Phys.org
Hint: what is the density of water? And what does it mean when something is floating on water?
 
If the density of water is one, and its floating, than it must be less than one?

How do I figure out exactly what it is, though? I don't have the mass or the exact density or the volume, so my formula is useless...
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Trying to understand the logic behind adding vectors with an angle between them'

Thread 'Trying to understand the logic behind adding vectors with an angle between them'

My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
View full post »

Similar threads

Solving the Mystery of a Floating Bottle: Density & Volume
Replies
15
Views
2K
Does Throwing an Object Overboard Affect Pond Water Level?
Replies
2
Views
2K
Weight of water with objects floating
Replies
13
Views
4K
Floating Cylinder of Uniform Density
Replies
21
Views
5K
Finding the density of a block in two layers of liquids
Replies
6
Views
2K
A solid cylinder of uniform density of 0.85 g/cm3 floats in
Replies
2
Views
2K
Calculating the Density and Buoyant Force of a Pear in Water with Added Salt
Replies
4
Views
2K
Finding the Density of a Floating Cube
Replies
8
Views
2K
Fluid Mechanics, Particle Size, Bouyouncy Force
Replies
16
Views
2K
How Do You Calculate the Volume of a Floating Object?
Replies
10
Views
11K

Hot Threads

Recent Insights

Back
Top