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A protostar is supported against gravitational collapse by the outward pressure generated from the heat produced by gravitational contraction. This pressure, known as radiation pressure, acts to counterbalance the force of gravity pulling the protostar inward. As the protostar continues to contract, it eventually reaches a point where nuclear fusion ignites in its core, providing an additional outward pressure that stabilizes the star against collapse.
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What is it called when the nebula begins collapsing and turning into a small spinning cloud?
This stage is called protostar formation. As the nebula collapses due to gravity, it begins to spin faster and forms a hot, dense core known as a protostar. This marks the beginning of the process that will eventually lead to the formation of a new star.
What happened when the gas in the nebula's center stopped collapsing?
When the gas in the nebula's center stopped collapsing, it likely reached a stable equilibrium where the inward force of gravity was balanced by the outward pressure from nuclear fusion or other energy sources. This equilibrium could result in the formation of a protostar or a star, depending on the mass and composition of the gas.
What is stage 4 of star formation?
Stage 4 of star formation is characterized by the formation of a protostar, where the collapsing gas and dust from a molecular cloud begin to accumulate in a dense core. As the core contracts, it heats up, leading to the onset of nuclear fusion in the core when temperatures rise sufficiently. This stage marks the transition from a protostar to a main-sequence star, with the surrounding material forming a protoplanetary disk that may lead to planet formation. Eventually, the protostar stabilizes, and the star begins its life on the main sequence.
Do prostars become stars?
The term is "protostar", not "prostar". Yes. A protostar is an early stage of a star.
Which prevents the elodea cells from completely collapsing?
Plasmolysis is the reason because it always has water to keep it full.
Why doesnt a protostar form a black hole?
The pressure within a protostar counters gravity and prevents the star from collapsing further.
What keeps the trachea from collapsing in the fetal pig?
The uterus keeps the trachea from collapsing in a fetal pig.
What effects are jets and magnetic fields thought to have on a protostar?
Jets and magnetic fields can have significant effects on a protostar. Jets can help remove angular momentum from the collapsing protostar, allowing it to continue collapsing and forming a star. Magnetic fields can also impact the accretion process by channeling material onto the protostar's surface in specific regions, affecting its growth and evolution. Additionally, the interaction between jets and magnetic fields can influence the star's formation and its surrounding environment.
What keeps the cell from collapsing?
Its cytoplasm.
What happens to the surface temperature and luminosity when gravity first assembles a protostar from a collapsing cloud?
As gravity collapses the cloud to form a protostar, the temperature and luminosity both increase. The increase in temperature is due to the compression of material, causing the protostar to heat up as energy is released. The increase in luminosity is a result of the protostar radiating this energy.
What keeps cell membrane form collapsing?
cytoplasm
What is it called when the nebula begins collapsing and turning into a small spinning cloud?
This stage is called protostar formation. As the nebula collapses due to gravity, it begins to spin faster and forms a hot, dense core known as a protostar. This marks the beginning of the process that will eventually lead to the formation of a new star.
How old is a protostar?
A protostar is the first part in the birth of a star. It's age, relative to itself is very young, anywhere between 0 and 100,000 years.
What is a star called before it is born?
A star is called a protostar before it begins nuclear fusion in its core and officially becomes a star. During this stage, a protostar is formed from a collapsing cloud of gas and dust, as gravity pulls material together and heats up the core.
The balance of forces that keeps a star from collapsing is called .?
hydrostatic
What two forces maintain hydrostatic equilibrium in a protostar?
In a protostar, hydrostatic equilibrium is maintained by the balance between gravitational forces and thermal pressure. Gravity pulls the material inward, causing the protostar to collapse, while thermal pressure, generated by nuclear fusion and the heat from the collapsing gas, pushes outward. When these two forces are in balance, the protostar can maintain a stable structure as it continues to evolve toward becoming a star.
What do you call The balance of forces that keeps a star from collapsing?
Dynamic equilibrium.
