COSMIC PERS: STARS GAL & COSMO ASTR
1st Edition
ISBN: 9781323495094
Author: Bennett
Publisher: PEARSON C
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Chapter 2, Problem 40EAP
New Planet. A planet in another solar system has a circular orbit and an axis tilt of 35°. Would you expect this planet to have seasons? If so, would you expect them to be more extreme than the seasons on Earth? If not, why not?
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1. using Newton’s Law of Universal Gravitation and some kinematics calculation we can calculate the mass of the planet. For this, use this equation in the image:
Given:
- vmax = 1.5 m/s
- Pstar = 3.5 days
- Mstar = 1.148 Msun, where Msun = 1.98847×1030 kg. This calculation is not shown.
What do we mean by apparent retrograde motion of planets? Why was it difficult for ancient astronomers to explain? How do we explain it today?
1. Which planetary model allows a scientist to predict the exact positions of the planets in the night sky over many years?
2. Which object orbits Earth in both the Earth – centered (geocentric) and Sun – centered (heliocentric) models of our solar system?
3. What is the actual shape of the Earth’s orbit around the Sun?
Chapter 2 Solutions
COSMIC PERS: STARS GAL & COSMO ASTR
Ch. 2 - Prob. 1VSCCh. 2 - Use the following questions to check your...Ch. 2 - Use the following questions to check your...Ch. 2 - Use the following questions to check your...Ch. 2 - Use the following questions to check your...Ch. 2 - Use the following questions to check your...Ch. 2 - Use the following questions to check your...Ch. 2 - Use the following questions to check your...Ch. 2 - Prob. 1EAPCh. 2 - Suppose you were making a model of the celestial...
Ch. 2 - On a clear, dark night, the sky may appear to be...Ch. 2 - Why does the local sky look like a dome? Define...Ch. 2 - Prob. 5EAPCh. 2 - What are circumpolar stars? Are more stars...Ch. 2 - What are latitude and longitude? Does the sky vary...Ch. 2 - What is the zodiac, and why do we see different...Ch. 2 - Suppose Earth’s axis had no tilt. Would we still...Ch. 2 - Briefly describe key facts about the solstices and...Ch. 2 - What is precession? How does it affect what we see...Ch. 2 - Briefly describe the Moon’s cycle of phases. Can...Ch. 2 - Why do we always see the same face of the Moon?Ch. 2 - Why don’t we see an eclipse at every new and full...Ch. 2 - What do we mean by the apparent retrograde motion...Ch. 2 - Prob. 16EAPCh. 2 - Prob. 17EAPCh. 2 - Prob. 18EAPCh. 2 - Prob. 19EAPCh. 2 - Prob. 20EAPCh. 2 - Does It Make Sense? Decide whether the statement...Ch. 2 - Does It Make Sense? Decide whether the statement...Ch. 2 - Prob. 23EAPCh. 2 - Does It Make Sense? Decide whether the statement...Ch. 2 - Does It Make Sense? Decide whether the statement...Ch. 2 - Does It Make Sense? Decide whether the statement...Ch. 2 - Quick Quiz Choose the best answer to each of the...Ch. 2 - Quick Quiz Choose the best answer to each of the...Ch. 2 - Quick Quiz Choose the best answer to each of the...Ch. 2 - Prob. 30EAPCh. 2 - Quick Quiz Choose the best answer to each of the...Ch. 2 - Quick Quiz Choose the best answer to each of the...Ch. 2 - Quick Quiz Choose the best answer to each of the...Ch. 2 - Quick Quiz Choose the best answer to each of the...Ch. 2 - Quick Quiz Choose the best answer to each of the...Ch. 2 - Quick Quiz Choose the best answer to each of the...Ch. 2 - Earth-Centered or Sun-Centered? Decide whether...Ch. 2 - Shadow Phases. Many people incorrectly guess that...Ch. 2 - Lunar Phases and Time of Day. Roles: Scribe (takes...Ch. 2 - New Planet. A planet in another solar system has a...Ch. 2 - Your View of the Sky. a. What are your latitude...Ch. 2 - View from the Moon. Assume you live on the Moon,...Ch. 2 - View from the Sun. Suppose you lived on the Sun...Ch. 2 - A Farther Moon. Suppose the distance to the Moon...Ch. 2 - A Smaller Earth. Suppose Earth were smaller. Would...Ch. 2 - Observing Planetary Motion. Find out which planets...Ch. 2 - 47. A Connecticut Yankee. Find the book A...Ch. 2 - Be sure to show all calculations clearly and state...Ch. 2 - Be sure to show all calculations clearly and state...Ch. 2 - Be sure to show all calculations clearly and state...Ch. 2 - Be sure to show all calculations clearly and state...Ch. 2 - Prob. 52EAPCh. 2 - Prob. 53EAPCh. 2 - Prob. 54EAPCh. 2 - Be sure to show all calculations clearly and state...Ch. 2 - Prob. 56EAPCh. 2 - Prob. 57EAPCh. 2 - Prob. 58EAPCh. 2 - Prob. 59EAPCh. 2 - Prob. 60EAP
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- You are packing for a vacation on a planet orbiting another star that is much like the Sun. Why might you want some information about the planets orbit size and axis tilt to know what to pack?arrow_forwardI am stuck on where to start with this question... 2. a. For two moons, (Moon A and Moon B) with the same mass, both in circular orbits about Mars, how many times more quickly or slowly is Moon B moving along its orbit if it 9 times farther from Mars' center than Moon A? b. Now if Moon A is 4 times more massive that Moon B, how much faster or slower will Moon B's orbital velocity be (relative to that of Moon A)?arrow_forwardYou are elected as the chief engineer of a project to explore the whole Solar System. Your aim is to design, manufacture and run a satellite -or- a device -or- a spaceship -or- "something" that will travel to each planet in the solar system, explore it and then send the data gained back to Earth. What points you consider as important stages of the project? What kind of travel method(s) you would use to cover whole solar system? How are you going to send back the data you gathered during the exploration?arrow_forward
- how do you compare us with people from the moon. Explain?arrow_forwardYou land on a strange spherical planet X. As a curious physicist, you set out to make the following measurements: (1) you observe that planet X has no appreciable atmosphere, (2) you measure that if you throw a 0.25 kg stone vertically upwards with launch speed 10 m/s, it comes back to ground in 8 sec, and (3) you measure the equatorial circumference to be 250,000 km. What is the mass of planet X? [Hint: The value of g on the planet surface is related to its mass M and radius R by the formula g = GM/R2.] a) 9*1025 kg b) 2.3*1027 kg c) 6.9*1026 kg If you take your spaceship to a 10,000 km altitude circular orbit around planet X, what would be the orbital period of the spaceship? [Hint: Use the fact that the gravitational force causes the radial acceleration to calculate the orbital speed.] a) 4.89 hrs b) 9.78 hrs c) 19.56 hrsarrow_forwardIf you lived on Mars, which planets would describe retrograde loops? Which would never be visible as crescent phases?arrow_forward
- One way to recognize a distant planet is by its motion along its orbit. If Uranus circles the Sun in 84 years, how many arc seconds will it move in 24 hours? (For the purposes of this problem, ignore the motion of Earth.)arrow_forwardAccording to the solar nebula theory, why is the Earth’s orbit nearly in the plane of the Sun’s equator?arrow_forwardGive me the right answer please and thank you, take your timeCalculate the amount of time it takes for light reflected off the surface of a distant planet to reach us.1. Sunlight takes about 8.3 minutes to travel from the Sun to Earth. What is the Sun-Earth distance in AU? (Give your answer rounded to the nearest AU).2.Light is reflected off the surface of a planet 5.2 AU away from us. How long does it take this light to reach us from the planet? Give your answer in minutes, rounded to exactly one decimal place.arrow_forward
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