1. Compare and contrast growth rates of planets in the inner solar system versus
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1. Compare and contrast growth rates of planets in the inner solar system versus the outer solar system, making sure to consider both small Earth-like planets and large Jupiter-like planets. Answers should include a comparison of growth rate curves, as well as consideration of differences in the growth rate equation, ie which terms matter more for growth related to different planet sizes, and whether such relevant terms change during the time of planet growth. Determine the column density of a planetary atmosphere of 20MPs with gravity of 15ms-2 2. 3. If an impactor with density of 1000kg m-3 were to enter the atmosphere from #2, at what radius would the impactor break-up? First consider an expression of impactor radius R and density for a given column density Considering the magma velocity equation, discuss the physical nature of each term and its effect on the velocity of magma. 4.Explanation / Answer
INTERNAL PLANETS:
Mercury, Venus, Earth and Mars:
Small size:
Earth is the largest of the inner Planets, with a diameter of 12,756 km (7,926 miles). Mercury is the smallest with a diameter of 4,878 km (three,031 miles)
Have stable surfaces and thin/no atmospheres:In idea, it'd be feasible to face on every of the inner Planets, even though you'll most effective continue to exist on this planet.
greater Density:
the size and composition of the planets is due to the density of the factors that make up the planets. The factors inside the internal Planets are more carefully packed collectively, causing them to be smaller and solid.
numerous atmospheres
The contents of the atmospheres of the internal Planets varies from planet to planet. Mercury has no atmosphere despite the fact that Sodium and Helium can be detected above the surface. Venus' environment is broadly speaking Carbon Dioxide with a completely small amount of Nitrogen. Earth's surroundings is ordinarily Nitrogen with a smaller quantity of Oxygen and even smaller quantities of other gases. Mars has a comparable composition of carbon dioxide and nitrogen as Venus although has a miles thinner surroundings.
regarded by way of the ancients
The lifestyles of the internal Planets has been known approximately for hundreds of years. The earliest astronomers didn't recognise that the 4 objects (including Earth) had been planets, but they knew they existed.
Spin slowly
as compared to the a good deal larger Outer Planets, the inner Planets spin pretty slowly. Earth spins the quickest, taking 23 hours and fifty six mins to spin on its axis. Venus takes 243 days to spin on its axis, spinning in an opposite course to the opposite planets.
Orbit the sun speedy
due to the fact they're pretty close to the solar, the inner Planets whole an orbit quickly. Mercury takes best 88 days to orbit the solar. Mars takes 687 days.
Few moons:
simplest Earth and Mars have moons orbiting them. One moon orbits Earth and small moons orbit Mars.
No earrings
not one of the inner Planets have earrings orbiting them
a couple of area craft site visitors
because of being close to Earth, there have been several missions to the opposite inner Planets, particularly to Mars and Venus. Mercury has been visited by spacecrafts.
THE OUTER PLANETS
Jupiter, Saturn, Uranus and Neptune:
huge:
Jupiter, the biggest planet, has a diameter of 142,984 km (88,846 miles). Neptune is the smallest of the Outer Planets with a diameter of 49,532 km (30,779 miles)
Balls of gas and not using a floor
most of the Outer Planets are made of gas. it is possibly that they have a miles smaller stable or liquid centre. it might be not possible to face on any of the Outer Planets.
Smaller Density
in spite of being larger, the elements that make up the Outer Planets are less densely packed together inflicting them to be quite mild for their length.
comparable atmospheres
The atmospheres of the Outer Planets consist mainly of Hydrogen and Helium, with Methane also being present inside the atmospheres of Uranus and Neptune. other gases are present even though in plenty smaller portions.
now not regarded through the ancients
Of the Outer Planets, handiest Jupiter and Saturn have been located with the aid of ancient astronomers. The life of Uranus and Neptune was no longer recognized till exceedingly these days. Uranus changed into found in 1781 and Neptune in 1846.
Spin speedy
all the Outer Planets spin faster than the inner Planets. Uranus spins slowest, taking 17 hours and 14 minutes to spin on its axis. Jupiter takes most effective nine hours and fifty five mins to spin on its axis. This rapid rotation causes Jupiter and Saturn to seem squashed, wider throughout the equator than from pinnacle to backside.
Orbit the solar slowly
The Outer Planets orbit the solar from thousands and thousands of miles and feature a miles greater distance to cowl to complete an orbit, so take a great deal longer to achieve this. Jupiter takes nearly 12 years to complete an orbit and Neptune takes over 164 years.
masses of Moons
all of the Outer Planets have many moons orbiting them. There are sixty three moons known to orbit Jupiter, 60 orbiting Saturn, 27 orbiting Uranus and 13 orbiting Neptune.
jewelry
all of the Outer Planets have earrings orbiting them. The jewelry are skinny discs of dirt and rocks possibly resulting from moons being broken up or not being absolutely formed at the same time as orbiting the planet. Saturn has the most visible ring machine of any of the plan.
All Outer Planets visited by one space craft
There were multiple visits to Jupiter and Saturn, but Uranus and Neptune have simplest been visited as soon as. This changed into with the aid of Voyager 2 (which also visited Jupiter and Satrun)
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