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Our understanding of the solar system has come in a way that can best
be described as:
explosive, with us learning more in the past few decades than in all
What is the goal of comparative planetology?
to determine the origin and evolution of the solar system
Masses of the planets are easiest to determine if:
they have natural satellites whose motions can be precisely measured
The average density of each planet in the solar system is determined by
taking its mass and dividing that by its
In order to determine the mass of a planet by applying Newton's laws of
motion and gravity, the planet must have
The orbits of the planets are NOT:
are almost parallel to one another (like sheets of paper one on top of
The (orbital) period of a planet is:
the time for one complete revolution of the planet around the
The mass of a planet is determined using:
Newton's laws of motion and gravity, combined with the (orbital)
period of the planet
How do the densities of the jovian and terrestrial planets compare?
All terrestrials are more dense than any of the jovians.
Which ordering of planets by INcreasing distance from the sun
is NOT correct:
venus, mars, neptune, uranus
Of all the planets the earth is UNIQUE in having:
substantial oxygen in it's atmosphere and liquid water on it's surface
Viewed from the side (and at a great distance from the sun) the planet
lie almost in one plane
c) lie very close to the "ecliptic?
The "Manicouagan resevoir" and the "Arizona Meteor Crater" are
the results of
extremely infrequent (less than once per ten thousand years)
The Kuiper Belt is an "outer asteroid belt" consisting of what types of
solar system bodies
icy cometlike bodies
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