What Happens When Objects with Opposing Angular Momentum Spin in Water?

  • Thread starter Thread starter lufc88
  • Start date Start date
  • Tags Tags
    Flow Spinning
AI Thread Summary
When two balls with opposing angular momentum spin in water, they will eventually stop due to frictional drag from the water. The discussion raises the question of whether they will drift closer together or apart under these conditions. If both balls spin in the same direction, the interaction dynamics may differ. The importance of clearly stating assumptions in such scenarios is emphasized to avoid confusion. Overall, the conversation highlights the complexities of fluid dynamics and the need for specificity in scientific inquiries.
lufc88
Messages
52
Reaction score
0
If two balls were close to each other in a pool of water and each had some angular momentum but one was spinning one way and the other was spinning the other way what would happen? same question for if they both were spinning the same way?
 
Physics news on Phys.org
Eventually, both objects would stop spinning, due to the frictional drag created by the flow of the water. Either way.
 
I think the OP is asking if they will drift closer together or apart.
 
what about assuming negligible friction? and yes I am.
 
Well, if you are making assumptions, list them in your post. If you want to ask a question, be specific about what you want to know. No one wants to play guessing games to try to read what's on someone's mind.
 
Thread 'Gauss' law seems to imply instantaneous electric field'

Thread 'Gauss' law seems to imply instantaneous electric field'

Imagine a charged sphere at the origin connected through an open switch to a vertical grounded wire. We wish to find an expression for the horizontal component of the electric field at a distance ##\mathbf{r}## from the sphere as it discharges. By using the Lorenz gauge condition: $$\nabla \cdot \mathbf{A} + \frac{1}{c^2}\frac{\partial \phi}{\partial t}=0\tag{1}$$ we find the following retarded solutions to the Maxwell equations If we assume that...
View full post »

Thread 'Highway: Deriving speed from Doppler shift'

I passed a motorcycle on the highway going the opposite direction. I know I was doing 125/km/h. I estimated that the frequency of his motor dropped by an entire octave, so that's a doubling of the wavelength. My intuition is telling me that's extremely unlikely. I can't actually calculate how fast he was going with just that information, can I? It seems to me, I have to know the absolute frequency of one of those tones, either shifted up or down or unshifted, yes? I tried to mimic the...
View full post »

Similar threads

B Conservation of Angular Momentum - Problem understanding this scenario
Replies
4
Views
1K
A Rotation speed for a particular system under gravity
Replies
23
Views
1K
I Work done "against centrifugal force"
Replies
9
Views
2K
I A scientific analysis of stopping the spin of Discovery One spaceship
Replies
3
Views
2K
I Gyroscopic precession of a spin-stabilized bullet
Replies
10
Views
3K
A Electric and magnetic field lines in a plane wave of finite extent
Replies
1
Views
1K
I How to account for linear momentum in a collision?
Replies
10
Views
1K
I Filling a pool with the hose end above or in the water
Replies
11
Views
3K
B How to show that particle spin includes angular momentum?
Replies
14
Views
2K
A How to show spin ##= \pm 2/\omega## for a circ-polarized gravity wave
Replies
0
Views
1K

Hot Threads

Recent Insights

Back
Top