A small solid sphere of mass M0, of radius R0, and of unifor

AI Thread Summary
The discussion revolves around the effects on water level L when replacing a small solid sphere in water with another sphere of varying densities and radii. When the new sphere has the same density but a larger radius, the water level rises; if it has a smaller radius but the same density, the level falls. A sphere with the same radius but lower density results in the water level falling, while a sphere with lower density and the same mass keeps the level unchanged. The outcomes vary based on the relationship between the sphere's density and the water's density, with some scenarios leading to an unchanged water level. Overall, the key factors influencing water level changes are the sphere's density and radius compared to the original sphere.
Spartan73
Messages
2
Reaction score
0

Homework Statement


A small solid sphere of mass M0, of radius R0, and of uniform density ρ0 is placed in a large bowl containing water. It floats and the level of the water in the dish is L. Given the information below, determine the possible effects on the water level L, (R-Rises, F-Falls, U-Unchanged), when that sphere is replaced by a new solid sphere of uniform density.
https://s1.lite.msu.edu/res/msu/kashy/physicsLib02/32_Fluids1_Pascal_Arch/sound/waterLevelCpt.mp3
1.The new sphere has density ρ = ρ0 and radius R > R0
2.The new sphere has radius R < R0 and density ρ = ρ0
3.The new sphere has radius R = R0 and density ρ < ρ0
4.The new sphere has density ρ < ρ0 and mass M = M0
5.The new sphere has radius R < R0 and density ρ > ρ0
6.The new sphere has density ρ > ρ0 and mass M = M0

Homework Equations

The Attempt at a Solution


1 R
2.F
3. F
4. U
5. R,F,U
6. U
 
Physics news on Phys.org
for 3.i think it will rise because the force by water is ρ(of water) x volume x g(acc. due to gravity).if ρ is less than ρ(water)
 
Spartan73 said:

Homework Statement


A small solid sphere of mass M0, of radius R0, and of uniform density ρ0 is placed in a large bowl containing water. It floats and the level of the water in the dish is L. Given the information below, determine the possible effects on the water level L, (R-Rises, F-Falls, U-Unchanged), when that sphere is replaced by a new solid sphere of uniform density.
https://s1.lite.msu.edu/res/msu/kashy/physicsLib02/32_Fluids1_Pascal_Arch/sound/waterLevelCpt.mp3
1.The new sphere has density ρ = ρ0 and radius R > R0
2.The new sphere has radius R < R0 and density ρ = ρ0
3.The new sphere has radius R = R0 and density ρ < ρ0
4.The new sphere has density ρ < ρ0 and mass M = M0
5.The new sphere has radius R < R0 and density ρ > ρ0
6.The new sphere has density ρ > ρ0 and mass M = M0

Homework Equations

The Attempt at a Solution


1 R
2.F
3. F
4. U
5. R,F,U
6. U
Please show your work/reasoning behind your answers...
 
Be careful with 6. What are all the possible consequences of increased density?
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
Back
Top