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Because that's the way gravity works. If you take Newton's formula for gravitation,
and you're comfortable enough with calculus and geometry to play around with it
for a while, you discover that a body in orbit around a much larger central body
must follow an elliptical path with the central body at one focus of the ellipse, and
that the line between them must 'sweep out' equal areas in equal periods of time.
These facts are exactly two of Kepler's three 'laws'. He got them by analyzing Tycho's
measurements and notebooks of how the things in the sky actually move, but once
the idea of gravity came around, it could finally be shown mathematically why things
must act that way.
That bit about sweeping out equal areas in equal periods of time ... that means that
when the orbiting body is closer to the central body, it has to move faster, and when
it's farthest from the central body, it has to move slowest.
Waldo Mayer
Wiki User
∙ 14y agotrue
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What is the lowest energy level that has f orbital?
3 answer for apex
Is 1s a real or impossible orbital?
1s is a real orbital, specifically the lowest energy orbital in an atom. It is a spherical orbital that is closest to the nucleus and can hold a maximum of 2 electrons.
Where the velocity of blood flow is the lowest?
capillaries!
Why does the s orbital fill before the p orbital?
It has a lower energy level. All else being equal, electrons tend to go into the lowest energy orbital with space available.
Why does 4s orbital start filling while 3p orbital is empty?
The electrons fill in the lowest energy orbital that is available. Electrons in the 4s orbital have a lower energy level than electrons in the 3p orbital, so the 4s orbitals are filled with electrons first.
Which planet has the lowest orbital velocity?
Pluto is the planet that has the lowest orbital velocity relative to that of the earth. The orbital velocity of Pluto is 0.159.
What is the lowest energy level that has f orbital?
3 answer for apex
If Assuming all orbitals are the same in energy level which type of orbital has the lowest energy?
The s orbital has the lowest energy level.
What is the lowest velocity?
In physics, velocity is a vector quantity that measures the rate at which an object changes its position. The lowest possible velocity is 0 m/s, which indicates that an object is not moving.
What is the lowest energy level that can have a d orbital?
3d
Which the lowest energy level that can have a p orbital?
2p
Is 1s a real or impossible orbital?
1s is a real orbital, specifically the lowest energy orbital in an atom. It is a spherical orbital that is closest to the nucleus and can hold a maximum of 2 electrons.
What is the lowest level having f orbital?
The lowest energy level that has F orbitals is the fourth energy level. The Atomic orbital of any atom only contains 2 electrons.
Which planets planetary orbits have the greatest inclination with respect to the plane of the ecliptic?
Uranus has the most extreme axial tilt of any planet in our solar system, with an inclination of about 98 degrees. Venus has the highest orbital inclination compared to the plane of the ecliptic, at about 3.4 degrees.
What is the earths atmospheres lowest layer?
The Troposphere
What is the lowest layer of the earths atmosphere?
core
Where the velocity of blood flow is the lowest?
capillaries!
