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Why planets do not collide while revolving around the sun?
Because if they were ever going to collide they would have done it at some time in the last 3.5 billion years. Each planet has its own stable orbit which takes it round the Sun regularly at a fixed range of distances that does not overlap with other planets. The planets are understood to follow Kepler's laws in elliptical orbits, under the force of the Sun's gravity.
Do constellations orbit planets and if they do what ones?
Constellations do not orbit planets. Constellations are apparent groupings of stars as seen from Earth, and they are fixed in their position relative to each other. They appear to move across the sky due to the Earth's rotation.
What is bhor's planetary model?
The Bohr's planetary model of the atom was proposed by Danish physicist Niels Bohr in 1913. In this model, electrons orbit the nucleus in fixed circular paths or orbits at specific energy levels, resembling planets orbiting the sun. This model successfully explained the stability of atoms by quantizing the electron orbits.
Why are planets also called as wanderers?
The very first astronomers merely looked at night at the stars. They noticed that almost all the stars circled the north star (Polaris) during the night (this is due to the Earth's rotation). Some of the stars seemed to be moving differently, with paths of their own, these were not stars, but were planets.
Do electron revolve around nucleus with same velocity at different places?
No, electrons do not revolve around the nucleus with the same velocity at different places in an atom. The velocity of an electron is determined by its energy level and is more accurately described by its probability distribution in the electron cloud. Electrons exhibit wave-particle duality and cannot be accurately described as classical particles with fixed orbits like planets around a central nucleus.
How do the members of the solar system revolve around thr sun?
in fixed orbits
What would happen if the planets did not move in their fixed path?
If the planets did not move in their fixed orbits they may dash each other.
Are planets fixed in space?
Certainly not, they revolve around a star and the star moves as well.
Can earth bump into another planet?
NO. All the planets are in (more or less) fixed orbits.
Why do planets change their position with respect to stars?
Because the Earth and all the planets move in orbits round the Sun, while the stars appear to be fixed if we disregard the Earth's daily rotation.
The paths in wich electrons circle the nucleus according to the Bohr model?
In the Bohr model, electrons circle the nucleus in specific orbits or energy levels, each with a fixed radius and energy value. These orbits are quantized, meaning electrons can only exist in certain stable orbits without radiating energy. The model's main idea is that electrons move in circular orbits at fixed distances from the nucleus, similar to planets orbiting the sun.
What are epicycles?
In ancient astronomy, epicycles were imaginary circles within orbits used to explain the retrograde motion of planets. The concept was developed to account for the observed movements of planets in the sky.
Why planets do not collide while revolving around the sun?
Because if they were ever going to collide they would have done it at some time in the last 3.5 billion years. Each planet has its own stable orbit which takes it round the Sun regularly at a fixed range of distances that does not overlap with other planets. The planets are understood to follow Kepler's laws in elliptical orbits, under the force of the Sun's gravity.
What moved in fixed orbits around the nucleus in Bohr's model of a the atom?
Electrons moved in fixed orbits around the nucleus in Bohr's model of the atom. These orbits were quantized, meaning they had specific energy levels, and electrons could jump between these orbits by either absorbing or emitting energy.
Do constellations orbit planets and if they do what ones?
Constellations do not orbit planets. Constellations are apparent groupings of stars as seen from Earth, and they are fixed in their position relative to each other. They appear to move across the sky due to the Earth's rotation.
What similarity did Ptolemy and Copernicus have about the solar system?
They were two theories that were used to predict the positions of the planets as they moved among the fixed stars. They both used planetary orbits based on combinations of circles and they were both pretty accurate. Ptolemy had the Earth at the centre while Copernicus had the Sun at the centre. They were both replaced by Kepler's theory, published in 1609, which had elliptical orbits for the planets and also had the Sun at the centre.
Is Mars on the left side or right side of Earth?
The position of Mars in relation to Earth changes due to their orbits. There is no fixed "left" or "right" side of Earth in relation to Mars. Both planets orbit the Sun, and their positions vary depending on where they are in their respective orbits.
