ESSENTIAL COSMIC PERS.-W/MASTER.ACCESS
9th Edition
ISBN: 9780135795750
Author: Bennett
Publisher: PEARSON
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Chapter 8, Problem 42EAP
Comparing Jovian Planets. You can do comparative planetology armed only with telescopes and an understanding of gravity.
- The small moon Amalthea orbits Jupiter at about the same distance in kilometers as Mimas orbits Saturn, yet Mimas takes almost tvlice as long to orbit. From this observation, what can you conclude about how Jupiter and Saturn differ? Explain.
- Jupiter and Saturn are not very different in radius. When you combine this information with your answer to part (a}, what can you conclude? Explain.
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O e. as a moon
QUESTION 3
You observe a large, round object orbiting Uranus. How would you classify this object?
O a. as a planet
Ob. as a dwarf planet
Oc. as an asteroid
Od. as a Kuiper belt object
e. as a moon
QUESTION 4
What is one difference between asteroids and Kuipter Belt Objects (KBOS)?
O a. asteroids are composed of rock and ice, while KBOS are composed of just rock
b. asteroids orbit the Sun, while KBOS orbit Pluto
C. asteroids orbit between Mars and Jupiter, while KBO's orbit near Pluto
d. asteroids have very elliptical orbits, while KBOS have very circular orbits
e. asteroids are small and potato-shaped, while KBOS are large and round
DO000
Let's use Kepler's laws for the inner planets. Use the following distances from the sun to calculate the orbital period for each of these planets. Express your answer in terms of Earth years to two significant figures.
Note: Use Kepler's law directly. Don't just Google the answers, as they will be a little bit different.
When you have calculated them, only submit the value for Mercury.
Planet
Distance from the sun
Period of orbit around the sun
Earth
150 million km
___ Earth years
Mercury
58 million km
___ Earth years
Venus
108 million km
___ Earth years
Mars
228 million km
___ Earth years
You are given the following data from observations of an exoplanet: Using Kepler’s Third Law (r3 = MT2 where M is the mass of the central star) find the orbital radius in astronomical units of this planet. M = 1.5 times the mass of the sun. Remember to convert days to years using 365.25 as the length of a year in days. What is the semimajor axis of this planet in AU?
- Knowing the orbital radius in both kn and AU, use the value in km to find the circumference of the orbit, then convert that to meters. (Assume the orbit is a perfect circle).
- Knowing the orbital circumference and the period in days, convert the days to seconds (multiply by 86,400) and find the orbital velocity in m/s
- With that orbital velocity, the radius of the orbit in meters, find the centripetal acceleration of our exoplanet
- Knowing the acceleration that our planet experiences, calculate the force that the host star exerts on the planet
- Knowing the force on the planet, the orbital radius, and the mass of the…
Chapter 8 Solutions
ESSENTIAL COSMIC PERS.-W/MASTER.ACCESS
Ch. 8 - Prob. 1VSCCh. 8 - Prob. 2VSCCh. 8 - Prob. 3VSCCh. 8 - Prob. 4VSCCh. 8 - Prob. 1EAPCh. 8 - Prob. 2EAPCh. 8 - Prob. 3EAPCh. 8 - Prob. 4EAPCh. 8 - Prob. 5EAPCh. 8 - Prob. 6EAP
Ch. 8 - Prob. 7EAPCh. 8 - Describe key features of Jupiter's four Galilean...Ch. 8 - Prob. 9EAPCh. 8 - Why do we think Triton is a captu red moon? How...Ch. 8 - Briefly explain why icy moons can have active...Ch. 8 - What ar e planetary rings made of, and how do they...Ch. 8 - Prob. 13EAPCh. 8 - Saturn’s core is pockmarked with impact craters...Ch. 8 - Neptune's deep bllle color is not due to methane,...Ch. 8 - A jovian planet in another star system has a moon...Ch. 8 - A planet orbiting another star is made primarily...Ch. 8 - A previously unknown moon orbits Jupiter outside...Ch. 8 - Prob. 19EAPCh. 8 - An icy, medium-size moon orbits a jovian planet in...Ch. 8 - A jovian planet is discovered in a star system...Ch. 8 - Future observations discover rainfall of liquid...Ch. 8 - During a future mission to Uranus, scient ists...Ch. 8 - Which lists the jovian planets in order of...Ch. 8 - Why does Neptune appear blue and Jupiter red? (a)...Ch. 8 - Prob. 26EAPCh. 8 - Prob. 27EAPCh. 8 - 28. The main ingredients of most moons of the...Ch. 8 - Prob. 29EAPCh. 8 - Prob. 30EAPCh. 8 - Whid1 moon shows evidence of rainfall and erosion...Ch. 8 - Prob. 32EAPCh. 8 - Prob. 33EAPCh. 8 - 34. Europan Ocean. Scientists strong ly suspect...Ch. 8 - Breaking the Rules. As discussed in Chapter 7, the...Ch. 8 - Jovian Planet Mission. We can study terrestrial...Ch. 8 - Jovian Moon Mission. Suppose you could choose any...Ch. 8 - Unanswered Question. Choose one unans wered...Ch. 8 - The Importance of Rotation. Suppose the material...Ch. 8 - Comparing Jovian Planets. You can do comparative...Ch. 8 - Prob. 43EAPCh. 8 - Prob. 44EAPCh. 8 - Prob. 45EAPCh. 8 - Disappearing Moon. lo loses about a ton (1000...Ch. 8 - 44. Ring Particle Collisions. Each ring particle...Ch. 8 - Prometheus and Pandora. These two moons orbit...Ch. 8 - Prob. 49EAPCh. 8 - Titanic Titan. What is the ratio of Titan's mass...Ch. 8 - Saturn’s Thin Rings. Saturn's riing system is over...
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- Tutorial Based on the orbital properties of Uranus, how far across the sky in arc seconds does it travel in one Earth day? The average orbital radius is 2.88 x 109 km and the period is 84.0 years. (Assume Uranus and the Earth are at the closest point to one another in their orbits.) How many full Moons does this distance cover if the Moon has an angular diameter of 0.5 degrees? Part 1 of 4 We first need to determine how fast the planet is moving across the sky. If we know the period and the distance between the Sun and the planet we can calculate the velocity using: 2ar which will tell us how many kilometers the planet travels in a day if we convert the period into days. days = (P years' |days/year Pdays days Submit Skip (you cannot come back)arrow_forwardVenus can be as bright as apparent magnitude -4.7 when at a distance of about 1 AU. How many times fainter would Venus look from a distance of 5 pc? Assume Venus has the same illumination phase from your new vantage point. (Hints: Recall the inverse square law; also, review the definition of apparent visual magnitudes. ote: 1 pc = 2.1 x 10° AU). times fainter What would its apparent magnitude be? Need Help? Read Itarrow_forwardI would like you to compare the size of some of the largest moons of the solar system to their host planets. Using diameters of 12,700 km, and 140,000 km, 116,000 km for Earth, Jupiter, and Saturn respectively, please provide the ratios of the following moons to their host planets (you can use Table 12.1 from the book to get the diameters of the moons): Luna (Earth's moon), Io, Callisto, Ganymede, Europa, and Titan. After collecting those ratios, please tell me one thing that you notice that stands out about those results.arrow_forward
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