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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
∙ 13y agotrue
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What is the lowest energy level that has f orbital?
3 answer for apex
Which is the lowest energy level having f orbital?
4f
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
What is the lowest velocity?
Lowest velocity round such as a 30.06 barrel has a longer barrel life.
Which planets planetary orbits have the greatest inclination with respect to the plane of the ecliptic?
Pluto is the odd man out. -- Orbit with greatest eccentricity (0.249). -- Greatest orbital period (248 years). -- Lowest mean surface temperature ( -225 C ) -- Lowest mean orbital velocity (2.93 mi/sec) -- Smallest escape velocity (0.7 mi/sec, less than earth's moon) ==> Greatest inclination of orbit to the ecliptic: 17.2 degrees.
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 energy level that can have a d orbital?
3d
Which the lowest energy level that can have a p orbital?
2p
Which is the lowest energy level having f orbital?
4f
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.
What is the lowest level of earths atmoshpere?
The Troposphere is the lowest level of Earth's Atmosphere.
What blood vessel has the lowest velocity?
capillaries
Where the velocity of blood flow is the lowest?
capillaries!
