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The densest parts of a nebula collapse primarily due to gravitational forces. As regions within the nebula become denser, their gravitational pull increases, attracting surrounding gas and dust. When the pressure and density reach a critical threshold, the intense gravitational forces overpower the internal thermal pressure, leading to the collapse of these regions. This process can initiate star formation as the collapsing material forms a protostar.
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What is the difference between a nebula and a globule?
A nebula is a vast cloud of gas and dust in space, often serving as a region where new stars are formed or as remnants of dead stars. In contrast, a globule is a smaller, denser region within a nebula, typically consisting of cold gas and dust that can collapse under gravity to form stars. While all globules can be found within nebulae, not all parts of a nebula are globules, as nebulae can contain a variety of structures and processes.
What causes a nebula to become dense at the center?
A nebula becomes dense at its center primarily due to gravitational forces. As gas and dust particles within the nebula clump together, their gravitational attraction pulls surrounding material inward, increasing density in that region. This process can lead to the formation of protostars as the core becomes hot and dense enough to initiate nuclear fusion. Additionally, external triggers, such as shock waves from nearby supernovae, can compress parts of the nebula, enhancing density further.
What are the parts of a Nebula?
A nebula typically consists of gas, dust, and plasma. These elements come together in space to form vast clouds of various shapes and sizes. Nebulae are often where new stars are born.
What are the parts of the earths shadow?
The three parts of Earth's shadow are the penumbra (outer part where the Earth partially blocks the sun's light), the umbra (inner, darker part where the Earth completely blocks the sun), and the antumbra (an outermost region when an object appears larger than the sun as in a solar eclipse).
Differences in the moon's pull on different parts of Earth cause what?
The differences in the moon's pull on different parts of Earth cause the ocean tides. This gravitational force causes the water levels in the oceans to rise and fall, creating high and low tides throughout the day.
Do protostars form when gravity causes dense parts of a star-forming nebulae to expand?
No. A protostar forms when gravity causes dense parts of a nebula to collapse. Since gravity is an attractive force it does not make any sense that it would cause something to expand.
When was the birth of the sun?
The Sun, like other stars, was formed in a nebula, which is like a cloud of dust and gas (mostly hydrogen). These nebulas form stars. They are located at the centre of spiral galaxies, such as our own Milky Way. In the nebula, dense parts of the clouds undergo gravitational collapse, which mean that they collapse into each other, and they then compress to form a rotating star, like our own Sun.
What is the difference between a nebula and a globule?
A nebula is a vast cloud of gas and dust in space, often serving as a region where new stars are formed or as remnants of dead stars. In contrast, a globule is a smaller, denser region within a nebula, typically consisting of cold gas and dust that can collapse under gravity to form stars. While all globules can be found within nebulae, not all parts of a nebula are globules, as nebulae can contain a variety of structures and processes.
What does a star depend on to survive?
a star depends on parts of a nebula.
What in earth Science shapeless cloud of gas and dust?
In Earth science, a shapeless cloud of gas and dust is typically referred to as a "nebula." These nebulae are often the birthplaces of stars and planetary systems, as they contain the necessary materials for star formation. Over time, gravity can cause parts of the nebula to collapse and condense, leading to the formation of new celestial bodies.
Is the nebula a planet?
A nebula is not a planet, it is a dust cloud. Some parts of outer space are dusty. And you thought it was just your room. Surprise!
What causes a nebula to become dense at the center?
A nebula becomes dense at its center primarily due to gravitational forces. As gas and dust particles within the nebula clump together, their gravitational attraction pulls surrounding material inward, increasing density in that region. This process can lead to the formation of protostars as the core becomes hot and dense enough to initiate nuclear fusion. Additionally, external triggers, such as shock waves from nearby supernovae, can compress parts of the nebula, enhancing density further.
What is produced when the outer parts of a star explodes after the core collapses?
The explosion (a supernova) produces a glowing cloud of gas (called a nebula) that slowly expands and dissipates (eg the crab nebula).
What is the densest layer of Earth's com-positional layers?
The densest layer of Earth's compositional layers is the core. It consists primarily of iron and nickel and is divided into two parts: the solid inner core and the liquid outer core. The immense pressure at the center of the Earth causes the inner core to remain solid, despite the high temperatures. The density of the core is significantly greater than that of the mantle and crust, making it the most dense layer of the planet.
What happen if there were no protection bone in your body?
internal parts will damage they will collapse
What are the parts of a Nebula?
A nebula typically consists of gas, dust, and plasma. These elements come together in space to form vast clouds of various shapes and sizes. Nebulae are often where new stars are born.
What is Bibasilar Atelectatic changes?
Bibasilar atelectasis refers to the collapse of parts of the lungs located at the base of the lungs, known as the bibasilar region. This can result from various causes such as shallow breathing, mucus plugs, or pressure on the lungs. Atelectatic changes refer to the radiographic appearance associated with lung collapse, such as increased density in affected areas on imaging studies like X-rays or CT scans.
