Why is angular momentum not conserved in 2 similar mass planet system?

AI Thread Summary
Angular momentum is not conserved in a two similar mass planet system due to external forces acting on the system, such as gravitational interactions with other bodies. The conservation of angular momentum applies only in isolated systems without external torques. The discussion highlights the importance of context in physics problems, emphasizing that without understanding the specific conditions, one cannot definitively state whether angular momentum is conserved. Clarification on the source of the initial claim about conservation is also sought. Understanding the nuances of angular momentum conservation requires a comprehensive grasp of the system's dynamics.
td21
Gold Member
Messages
177
Reaction score
8
The two mass is similar. I read a line about this and i thought L should be conserved before. What is the background knowledge behind? Thank you.
 
Astronomy news on Phys.org
I read a line about this...
Where did you read this line?

There is no way to answer this question without the proper context.
 

Thread 'Potential biosignature found in Mars rock'

Publication: Redox-driven mineral and organic associations in Jezero Crater, Mars Article: NASA Says Mars Rover Discovered Potential Biosignature Last Year Press conference The ~100 authors don't find a good way this could have formed without life, but also can't rule it out. Now that they have shared their findings with the larger community someone else might find an explanation - or maybe it was actually made by life.
View full post »

Thread 'Does it make sense to build new radio telescopes?'

TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better? In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
View full post »
Thread 'Could gamma-ray bursts have an intragalactic origin?'

Thread 'Could gamma-ray bursts have an intragalactic origin?'

This is indirectly evidenced by a map of the distribution of gamma-ray bursts in the night sky, made in the form of an elongated globe. And also the weakening of gamma radiation by the disk and the center of the Milky Way, which leads to anisotropy in the possibilities of observing gamma-ray bursts. My line of reasoning is as follows: 1. Gamma radiation should be absorbed to some extent by dust and other components of the interstellar medium. As a result, with an extragalactic origin, fewer...
View full post »

Similar threads

B What keeps most galactic stars from falling into the centeral black hole?
Replies
6
Views
2K
B Does galaxy formation conserve mass and angular momentum?
Replies
31
Views
4K
A Did scientists just find that the Universe has finite angular momentum?
Replies
12
Views
3K
I Angular Momentum in a Solar Nebula
Replies
7
Views
3K
I New Developments In The Search For Planet X
Replies
2
Views
3K
I The Symmetry of Angular Momentum Conservation
Replies
7
Views
3K
I How Can We Measure Properties of Distant Planets and Stars?
Replies
12
Views
2K
Angular momentum for a bullet and a rod attached to a ceiling
Replies
17
Views
1K
I Axial angular momentum calculation
Replies
12
Views
1K
I Tidal forces acting on planet NGTS-10b
Replies
2
Views
3K

Hot Threads

Recent Insights

Back
Top