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What is holding the sun in place?
The sun is held in place by its own gravity, which creates a delicate balance between the outward pressure from nuclear fusion in its core and the inward pull of gravity. This balance keeps the sun stable and prevents it from expanding or collapsing.
What causes the outward force in a star?
The outward force in a star is caused by the pressure generated from the energy released during nuclear fusion in its core. This pressure counteracts the force of gravity pulling inward, creating a stable equilibrium that allows the star to maintain its shape and balance.
Stars balance there inside gravity by?
The inward force of gravity is counteracted by two outward forces: gas pressure, and radiation pressure. Once the star runs out of fuel, the radiation pressure stops, the gas pressure is no longer enough to counteract gravity, and the star collapses - into a white dwarf, a neutron star, or a black hole, depending on its mass.
What holds the star together?
Stars are held together by their own gravity, which is the result of the balance between the force of gravity pulling matter inward and the pressure created by nuclear fusion reactions in the star's core pushing outward. This equilibrium allows the star to remain stable and maintain its size and shape.
What best describes stellar equilibrum?
Stellar equilibrium is the balance between the inward force of gravity and the outward force of gas pressure within a star. This balance allows the star to maintain its size and shape over time. Any disruptions to this equilibrium can result in changes to the star's structure and behavior.
What is holding the sun in place?
The sun is held in place by its own gravity, which creates a delicate balance between the outward pressure from nuclear fusion in its core and the inward pull of gravity. This balance keeps the sun stable and prevents it from expanding or collapsing.
What do the outward and inward forces acting on a star have to do with it's size?
The outward force is the pressure generated by nuclear fusion in the star's core, which counteracts the inward force of gravity trying to compress the star. The balance between these forces determines the size and stability of the star. If the outward pressure exceeds the gravitational force, the star can maintain its size and stability.
What is gravitational equilibrium?
Gravitational equilibrium is the balance between the inward force of gravity and the outward force of pressure in stars. This balance allows the star to maintain its size and shape without collapsing or expanding. In gravitational equilibrium, the force of gravity pulling inward is countered by the pressure pushing outward, resulting in a stable equilibrium state.
Is a nebula held together of the outward force of gravity?
Yes, a nebula is held together by gravity. Gravity causes the gas and dust within a nebula to contract and clump together, eventually forming stars and other celestial bodies.
What causes the outward force in a star?
The outward force in a star is caused by the pressure generated from the energy released during nuclear fusion in its core. This pressure counteracts the force of gravity pulling inward, creating a stable equilibrium that allows the star to maintain its shape and balance.
Why doesn't the sun and earth not collapse?
The Sun and Earth do not collapse due to a balance between two forces: gravity pulling inward and pressure pushing outward. The gravity from the Sun's mass pulls all the matter inward, while the pressure created by nuclear fusion at its core creates an outward force. This balance maintains the Sun's stable size and prevents it from collapsing.
Stars balance there inside gravity by?
The inward force of gravity is counteracted by two outward forces: gas pressure, and radiation pressure. Once the star runs out of fuel, the radiation pressure stops, the gas pressure is no longer enough to counteract gravity, and the star collapses - into a white dwarf, a neutron star, or a black hole, depending on its mass.
What process is no longer in balance as the fuel burns away on the sun?
As the fuel burns away, the balance between gravity pulling inward and nuclear fusion creating outward pressure is disrupted. This leads to changes in the sun's structure and energy output.
When The balance of forces that keep a star from collapsing is called?
The balance of forces that keep a star from collapsing is called hydrostatic equilibrium. This equilibrium is maintained between the inward force of gravity and the outward force generated by gas pressure within the star.
How does Hydrostatic equilibrium work?
Hydrostatic equilibrium is the balance between the inward force of gravity and the outward pressure gradient in a fluid, like in a star or planet. This equilibrium prevents further collapse or expansion by ensuring that the pressure within the fluid supports the weight of the overlying material. In stars, this balance between gravity and pressure helps maintain their stable size and shape.
What does the equilibrium between the outward pressures of radiation and the force of gravity do?
"While the star can produce energy, that keeps the star in balance - it keeps the star from collapsing. By the way, another outward force is the gas pressure, but that, by itself, is not enough to counteract the force of gravity in the case of a star."
Which best explains why the sun maintains its size and shape?
Pressure caused by high temperatures are balanced by gravity
