EBK THE COSMIC PERSPECTIVE
9th Edition
ISBN: 9780135161753
Author: Voit
Publisher: VST
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Textbook Question
Chapter S1, Problem 55EAP
Mercury’s Rotation Period. Mercury’s sidereal day is approximately 2323 of its orbital period, or about 58.6 days. Estimate the length of Mercury’s solar day. Compare it to Mercury’s orbital period of about 88 days.
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I. Directions: Complete the given table by finding the ratio of the planet's time of revolution to its radius.
Average
Radius of
Orbit
Times of
Planet
R3
T2
T?/R3
Revolution
Mercury
5.7869 x 1010
7.605 x 106
Venus
1.081 x 1011
1.941 x 107
Earth
1.496 x 1011
3.156 x 107
1. What pattern do you observe in the last column of data? Which law of Kepler's does this seem to support?
II. Solve the given problems. Write your solution on the space provided before each number.
1. You wish to put a 1000-kg satellite into a circular orbit 300 km above the earth's surface. Find the
following:
a) Speed
b) Period
c) Radial Acceleration
Given:
Unknown:
Formula:
Solution:
Answer:
Given:
Unknown:
Formula:
Solution:
Answer:
Given:
Unknown:
Formula:
Solution:
Answer:
Question 3.
Astronomers are consistently finding new moons of Jupiter, both big and small.
Suppose astronomers discovered a new moon called Yelruh that orbits a distance of
5.63x108 m from the surface of Jupiter. Using the information for another moon of
Jupiter, calculate Yelruh's orbital period.
Average distance from Mars to the Sun: 1.524 x 106
A) using the fact that the sun subtends an angle of 0.5 degrees from the Earth, determine the angular size of the Sun from Mars.
Chapter S1 Solutions
EBK THE COSMIC PERSPECTIVE
Ch. S1 - Prob. 1VSCCh. S1 - Use the following questions to check your...Ch. S1 - Use the following questions to check your...Ch. S1 - Use the following questions to check your...Ch. S1 - Use the following questions to check your...Ch. S1 - Prob. 6VSCCh. S1 - Prob. 7VSCCh. S1 - Explain the differences between a (a) sidereal day...Ch. S1 - Prob. 2EAPCh. S1 - Prob. 3EAP
Ch. S1 - Prob. 4EAPCh. S1 - Prob. 5EAPCh. S1 - Prob. 6EAPCh. S1 - What are declination and right ascension? How are...Ch. S1 - 8. How and why do the Sun’s celestial coordinates...Ch. S1 - 9. Suppose you ire at the North Pole. Where is the...Ch. S1 - 10. Describe the Sun’s path through the local sky...Ch. S1 - 11. What is special about the tropics of Cancer...Ch. S1 - 2. Briefly describe how you can use the Sun or...Ch. S1 - Does It Make Sense? Decide whether the statement...Ch. S1 - Does It Make Sense?
Decide whether the statement...Ch. S1 - Does It Make Sense?
Decide whether the statement...Ch. S1 - Does It Make Sense?
Decide whether the statement...Ch. S1 - Does It Make Sense?
Decide whether the statement...Ch. S1 - Does It Make Sense?
Decide whether the statement...Ch. S1 - Does It Make Sense?
Decide whether the statement...Ch. S1 - Does It Make Sense?
Decide whether the statement...Ch. S1 - Does It Make Sense?
Decide whether the statement...Ch. S1 - Does It Make Sense? Decide whether the statement...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Choose the best answer to each of the following...Ch. S1 - Transits and the Geocentric Universe. Ancient...Ch. S1 - Geometry and Science. As discussed in Mathematical...Ch. S1 - Northern Chauvinism. Why is the writing on maps...Ch. S1 - Group Activity: Find Your Way Home. You and your...Ch. S1 - Opposite Rotation. Suppose Earth rotated in a...Ch. S1 - Prob. 39EAPCh. S1 - The Sun from Mars. Mars has an axis tilt of 25.2°,...Ch. S1 - Fundamentals of Your Local Sky. Answer each of the...Ch. S1 - Prob. 42EAPCh. S1 - Prob. 43EAPCh. S1 - Prob. 44EAPCh. S1 - Prob. 46EAPCh. S1 - Lost at Sea I. During a vacation, you decide to...Ch. S1 - Prob. 48EAPCh. S1 - Prob. 49EAPCh. S1 - Lost at Sea IV. Repeat Problem 47 for this...Ch. S1 - Orbital and Synodic Periods. Use each object’s...Ch. S1 - Prob. 52EAPCh. S1 - HA=LST-RA It is 4 p.m. on the March equinox. What...Ch. S1 - Meridian Crossings of the Moon and Phobos....Ch. S1 - Mercury’s Rotation Period. Mercury’s sidereal day...
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- BACKGROUND An ingenious solution to the Earth's circumference occured in 230 BC. Eratosthenes, a Greek geographer, mathematician, music theorist, poet, astronomer, and philosopher, was reading in the Library of Alexandria when he noticed an account for a deep well near Syene (now Aswan), some distance to the south (800 km) in which at high noon on the longest day of the year the bottom of the well was fully illuminated by the Sun. Eratosthenes exclaimed "Ah-ah!" (or something like that), "I can solve for the circumference of the Earth!". In his mind's eye, Eratosthenes could see that at Syene, at the moment when the bottom of the well was fully lit, the Sun must have been at the Zenith (directly overhead). Yet he knew that at the same moment in Alexandria vertical objects (like a tower, pole) cast shadows. Here is the experiment perfomed by Eratosthenes (see the picture below). • He erected a vertical pole at Alexandria (A) and measured the angle of its shadow at the moment when the…arrow_forwardWhich statement describes the sun's position relative to planetary orbits? A. The sun is at the center of each planet's circular orbit. B. The sun is midway between the foci of each planet's elliptical orbit. C. The sun is one focus of each planet's elliptical orbit. D. The sun alternates between the two foci of planetary orbits.arrow_forwardYou land on Mars and observe that one of its moons (Phobos) has an orbital period of 7.66 hours. If the Phobos were farther from Mars than it is now, it’s period would be a) less than 7.66 hrs. b) about 7.66 hrs. c) more than 7.66 hrs. d) difficult to predict without more information.arrow_forward
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