Under the influence of gravity, over time the dense central part of a galaxy will do what?(1 point) Responses stay as it is, forces balanced stay as it is, forces balanced stay the same size but spin more slowly stay the same size but spin more slowly contract contract expand
contract
Under the influence of gravity, over time the dense central part of a galaxy will contract.
Under the influence of gravity, over time the dense central part of a galaxy will expand, stay the same size but spin more slowly, or contract.
To determine what would happen in a specific galaxy, we need to understand the concept of gravitational collapse and the interplay between gravitational forces and other forces in the galaxy. Here's an explanation to help us arrive at an answer:
1. Forces balanced: In some cases, the gravitational forces pulling matter inward can be balanced against other forces, such as gas pressure or angular momentum. This balance can result in the central part of the galaxy staying as it is, neither contracting nor expanding.
2. Stay the same size but spin more slowly: In certain situations, a galaxy may have enough angular momentum, or spinning motion, that it counteracts the gravitational collapse. This could result in the central part of the galaxy maintaining its size but spinning more slowly over time.
3. Contract: If the gravitational forces are dominant and not counteracted by other forces, the central part of the galaxy will tend to contract. As matter compresses under the force of gravity, it becomes denser and the central region of the galaxy may shrink.
4. Expand: However, in some cases, factors such as the presence of dark energy or a significant amount of momentum can cause the central part of a galaxy to expand over time.
Overall, the behavior of the dense central part of a galaxy will depend on the relative strength of gravitational forces and other forces acting within the galaxy. Each galaxy may have different factors at play, resulting in various outcomes.