Explain the role of gravity in the formation of solar systems and galaxies?
Gravity is a force if attraction
A star is made from a nebula which is a spinning cloud of gas and dust and a star is formed when the gas and dust contract under gravity and get a hot enough tempreture and pressure for nuclear fusion and a star is born, that explains the galaxy bit cause a galaxy is a collection of stars.
The planets are formed from left over material from the formation of the sun and the material clumps together because as the material has an attractive force it attracts more and more material which increases the gravity and a planet is formed.
The Earth's composition is more relevant to the the Nebular Hypothesis for the formation of solar systems is more appropriate to explain the origin of planets. However, the Big Bang creation event did provide for the matter and energy which eventually facilitated the formation of black holes, galaxies, solar systems and then the planets.
Lenticular galaxies are systems whose dark matter, interstellar dust and gas, stars, and stellar remnants are bound together gravitationally as intermediates between elliptical and spiral galaxies. Like spiral galaxies, they have little or no interstellar matter for ongoing star formation. But like elliptical galaxies, they have quite a bit of dust in their disks, qualify as early galaxies on the process of passive evolution, and shelter aging stars.
1. An average glaxaie's speed is about 140 miles a second ! :] 2.Galaxies are classified by elliptical, spiral, and irregular. 3. Galaxies are a huge group of single stars, star clusters, star systems, dust and gas bound together by gravity. 4. Irregular galaxies are typically smaller than other types of galaxies. 5. A galaxies classification is determined by shape, color, size, or temperature.
Not really. Galaxies do not "eat" other galaxies so much as they MERGE WITH other galaxies. It isn't as if the original galaxy remains unchanged, and the "consumed" galaxy is destroyed; both galaxies come together, swirl around their mutual centers of gravity, and a thousand or a million star systems are flung off into the void as the mass comes together to form one new galaxy.
The simple answer, with the fewest explanations necessary, is gravity. The amount of space displaced by a solar system holds it together. The not-so-simple answer is that gravity is not the only thing that holds systems together; dark matter also often holds a role in holding solar systems and galaxies together.
What is the role that gravity played in the formation of planets stars and solar systems and in determining their motions?
There is no doubt that planets, stars, and solar systems could not ever have formed without gravity. All of these astronomical objects condensed out of clouds of interstellar gas and dust, under the influence of gravity. It is also true that planets orbit stars only because of the gravitational attraction of those stars.
Irregular galaxies have no definite shape, some are made up of designs and colors bizarre, surreal. The causes of irregularity in the shape form of these systems are unknown, as are other causes of morphological types. Some astronomers attribute the irregular shape form to the gravitational forces that have not yet formed a standard gyroscopic, which would lead to the assumption that these galaxies would be relatively young. Some irregular galaxies are actually small spiral…
Explain architecture of Distributed Database systems Also explain the reasons for building distributed database systems?
Wherever you see things in space that pretty much stay together and don't go flying off on their own, it's gravity holding them together. That goes for the actual material that stars and planets are made of, and for their families of moons, asteroid belts, rings, solar systems, galaxies, and clusters of galaxies.
This is the most difficult, yet easiest concept of physics to grasp. If there were no gravity, there would be no planets, no stars, no star systems or galaxies, and no universe. While gravity is the weakest of the four fundamental forces (strong nuclear, weak nuclear, electromagnetic, and gravity), and the least understood. Physicists have been chasing the mystery of gravity for a century or more. The fact remains, that none of what we know…
None, the universe came into existence in the Big Bang very slightly spinning and every part of the universe is spinning. When a cloud of matter collapses to form galaxies, stars, solar systems, planets, etc. the local rate of spin increases. This not only makes the bodies themselves spin but it makes planets orbit stars in solar systems, stars and solar systems orbit inside galaxies, galaxies orbiting clusters of galaxies, etc.
Galaxies do occur IN Solar systems. Galaxies are much much bigger than solar systems. This means that solar systems are found in Galaxies. The Galaxy we live in is called the "Milky Way Galaxy". The Milky Way is a barred spiral galaxy 100,000-120,000 light-years in diameter containing 200-400 billion stars. Each star is potentially a solar system like our own. NOTE: we can see that outside the Milky Way there are hundreds of billions of…