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Why does gravity differ on didderent planets?
Because different planets have different masses :)
How do planets made entirely from gas keep from disapating?
Gaseous planets have very large masses and so a strong gravitational field.
How do the four rocky planets compare to the four gas giants in size?
All four rocky planets are much smaller than gas planets.
Which group of planets shares the most characteristics?
Both Jovian planets and Terrestrial planets share a similar amount of characteristics. For example, Jovian planets are gaseous, large and farthest from the sun. While Terrestrial planets are rocky, dense, closest to the sun and small (in comparison to Jovian planets). The two planets with the most similarities are Venus and Earth hence them being called "sister planets" due to to their similar masses.
What is alarge solid approximately spherical masses the most famous of which is earth which revolve around the sun called?
The Planets in our Solar System (if I am reading your question correctly)Order of Planets in our Solar System (from closest to the Sun, out):MercuryVenusEarthMarsSaturnJupiterNeptuneUranus*(NOT PLUTO ANY Longer, since it was DEMOTED to a PLANETOID)
How can you determine the actual masses of planets?
the effect it has on other planets
Why does gravity differ on didderent planets?
Because different planets have different masses :)
If you know the molar masses of the reactants in a chemical reaction can you determine the molar masses of the products?
If you know know the molar masses of the reactants in a chemical reaction you can determine the molar masses of the products because the combined molar masses of the reactants equals the combined molar masses of the products.
Why can't you determine the size of the planets?
But you CAN determine the size of the planets: in diameter, overall mass, and in density.
What do the inner planets have incommon?
They are all solid masses, i.e. not gaseous bodies like the outer planets.
Why planets and moons of planets stay in their orbits?
The forces of gravity between two masses are the cause of all orbits.
What are small masses of iron and stone found in our solar system?
Planets
How is there gravity for the planets?
They all have mass, and masses are attracted to each other.
What characteristic do outer planets share?
The outer planets are primarily gaseous meaning they are basically just gargantuan masses of gas.
Why were the masses of Mercury and Venus unknown for so long?
Because they don't have any moons. The easiest way to determine the mass of a planet is the measure the distance of its moon and the time that moon takes to orbit around the planet.
What makes up 70 percent of the masses of all the planets combined?
Jupiter
How do planets made entirely from gas keep from disapating?
Gaseous planets have very large masses and so a strong gravitational field.
