EBK COSMIC PERSPECTIVE, THE
8th Edition
ISBN: 8220101465108
Author: Voit
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 24EAP
Does It Make Sense?
Decide whether the statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain clearly; not all of these have definitive answers, so your explanation is more important than your chosen answer.
24. If Earth’s orbit were a perfect circle, we would not have seasons.
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Question 1 (Total: 30 points)
a. What is a repeat ground-track orbit?
b. Explain why repeat ground-track and Sun-synchronous orbits are typically used for Earth observation missions.
c. The constraint for a Sun-synchronous and repeat ground-track orbit is given by T = 286, 400, where I is the orbital period in seconds, m the number of days and k
the number of revolutions. Explain why this is, in fact, a constraint on the semi-major axis of the orbit.
In the figure below, Planet X is moving in a perfectly circular orbit around its companion star.The time between each position shown is exactly one month:
1. Write down Kepler’s second Law of planetary motion.2. Does the planet obey Kepler’s second law? How do you know?3. If you carefully watched this planet during the entire orbit, would its speed be increasing, decreasing, orstaying the same? How do you know?
Milestone A: Walk 3.2 km (~2 miles) towards northeast.
Milestone B: Walk 1.3 km towards southeast.
Milestone C: Walk 2.4 km directly south.
Surprise at the end!
You have arrived at the treasure!
Distance: What is the total distance traveled if you walk the distance A, B, C? Give your answer in km and miles.
2. Direction:
a. what is meant by “north east?”
b. what direction would this be on a cartesian coordinate system?
c. What is meant by “south east?”
d. What direction would this be on a cartesian coordinate system?
e. What about “south”?
f. What direction on cartesian coordinate system?
3. Draw the diagram: include drawing the resultant
a. What does the resultant vector represent?
4. Calculate: use trigonometry to find the displacement.
Chapter 2 Solutions
EBK COSMIC PERSPECTIVE, THE
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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