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Proto stars expand primarily due to the gravitational forces acting on them as they accumulate mass. As they gather material from their surrounding molecular cloud, the increasing pressure and temperature at their core can lead to nuclear fusion. This process generates energy that counteracts gravitational collapse, causing the proto star to expand. Additionally, the balance between gravitational contraction and thermal pressure from nuclear reactions influences their size and stability during this phase.
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Why do stars expand and contract in size?
Stars expand and contract in size due to the balance between gravitational forces pulling inwards and internal pressures pushing outwards. When nuclear fusion in the core of a star produces energy, it creates an outward pressure that can cause the star to expand. As the star's core exhausts its fuel, the outward pressure decreases, causing the star to contract under its own gravity.
Why do red giant stars expand?
Because they begin to run out of fuel
Are dying stars bright?
Yes, dying stars can become very bright. As they run out of nuclear fuel, some stars expand into red giants or supergiants, which can increase their brightness. Additionally, some dying stars, like supernovae, can produce intense bursts of light as they explode.
What would cause a balloon to expand if taken to top of mountain?
Lowered Pressure
What would cause a balloon to expand if taken to the top a mountain?
Lowered Pressure
Do stars expand in size?
Stars expand in size to become red giants, when they start running low on Hydrogen fuel.
Why do stars expand and contract in size?
Stars expand and contract in size due to the balance between gravitational forces pulling inwards and internal pressures pushing outwards. When nuclear fusion in the core of a star produces energy, it creates an outward pressure that can cause the star to expand. As the star's core exhausts its fuel, the outward pressure decreases, causing the star to contract under its own gravity.
What do scientist think was responsible for clumping together matter forming the fist stars after the big bang?
Scientists believe that the clumping together of matter to form the first stars after the Big Bang was primarily due to the force of gravity. Gravity caused regions of slightly denser matter to attract more matter towards them, leading to the formation of proto-stars. Over time, these proto-stars accumulated enough mass and pressure to ignite nuclear fusion, giving birth to the first stars in the universe.
Why do red giant stars expand?
Because they begin to run out of fuel
What are three genetic changes that can convert proto-oncogenes to oncogenes?
Point mutations: Single nucleotide changes can lead to constitutive activation of proto-oncogenes. Gene amplification: Duplication of proto-oncogene sequences can increase gene expression levels, leading to oncogenic transformation. Chromosomal translocations: Rearrangements can cause fusion of a proto-oncogene with a new promoter region, resulting in abnormal activation.
What do Higher temperatures cause rocks to do?
Expand
What do blue stars expand to become?
Blue stars expand to become red supergiants. This expansion occurs as they near the end of their life cycle and undergo changes in their core structure leading to increased size and brightness. Ultimately, blue stars can end their lives in a supernova explosion.
What to high temperatures cause rocks to do?
High temperatures cause rocks to expand
What objects made the galaxy?
Black holes, stars, planets, proto-planets, large and small agglomerates (comets, meteors, interstellar dust), gas clouds.
What is proto type. explain with example.?
a proto-type is a model basiclly like a dress that is drawn that is a proto-type
Can a star be born whenever a nebula expands?
No. Stars are born when nebulae collapse, not when they expand.
When was Frank Proto born?
Frank Proto was born in 1941.
