The Cosmic Perspective (9th Edition)
9th Edition
ISBN: 9780134874364
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 7, Problem 47EAP
Comparative Weight. Suppose you weigh 100 pounds. Calculate how much you would weigh on each of the other planets in our solar system. Assume you can stand either on the surface or in an airplane in the planet’s atmosphere. (Hint: Recall from Chapter 4 that weight is mass times the acceleration of gravity; the “surface gravity” column in Appendix E tells you how the acceleration of gravity on other planets compares to that on Earth.)
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1. What is the gravitational potential energy of the mass (m) in the picture? The mass is the same
distance awayr from the centers of both of the other masses, and both of the other masses have
the same mass, M. Give your answer in Joules.
r= 400 million meters
m = 7x1022 kg
M = 2x1027 kg
2. What is the net gravitational force for the mass m at this location? Give your answer in
Newtons.
The gravity on Mars is about 38% that of Earth's gravity. Let's say some cargo has a mass of 15 kg here on Earth.
First, what would be the weight of that cargo in kilograms on Mars? Explain your answer.
Second, what would be the mass of that cargo in kilograms on Mars? Explain your answer.
Part B.
1. The table below shows the gravitational force between Saturn and some ring
particles that are at different distance from the planet. All of the particles have a
mass of 1 kg.
Table 1. Distance and Gravitational
Force Data
Distance of 1- Gravitational
kg Ring
Particle from
Force between
Saturn and 1-kg
ring particle (in
| 10,000 N)
2. Use the data in the table to make a
graph of the relationship between
distance and gravitational force. Label
your graph "Gravitational Force and
distance".
Center of
Saturn (in
| 1,000 km)
100
38
Hint: Put the data for distance on the
horizontal axis and the data for
gravitational force on the vertical axis.
120
26
130
22
150
17
3. Look at your graphed data, and
record in your answering sheet any
relationship you notice.
180
12
200
9.
220
8
250
280
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Chapter 7 Solutions
The Cosmic Perspective (9th Edition)
Ch. 7 - Prob. 1VSCCh. 7 - Use the following questions to check your...Ch. 7 - Use the following questions to check your...Ch. 7 - Use the following questions to check your...Ch. 7 - What do we mean by comparative planetology? Does...Ch. 7 - What would the solar system look like to your...Ch. 7 - Briefly describe the overall layout of the solar...Ch. 7 - For each of the objects in the solar system tour...Ch. 7 - Briefly describe the patterns of motion that we...Ch. 7 - What are the basic differences between the...
Ch. 7 -
7. What do we mean by hydrogen compounds? In...Ch. 7 -
8. What are asteroids? What are comets? Describe...Ch. 7 - What kind of object in Pluto? Explain.Ch. 7 - What is the Kuiper belt? What is the Oort cloud?...Ch. 7 - Describe at least two “exceptions to the rules”...Ch. 7 - Describe and distinguish between space missions...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Does it Make Sense? Decide whether the statement...Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Choose the best answer to each of the following....Ch. 7 - Why Wait? To explore a planet, we often send first...Ch. 7 - Prob. 35EAPCh. 7 - Prob. 37EAPCh. 7 - Patterns of Motion. In one or two paragraphs,...Ch. 7 - Solar System Trends. Answer the following based on...Ch. 7 - Comparing Planetary Conditions. Use both Table 7.1...Ch. 7 - Prob. 41EAPCh. 7 - Size Comparisons. How many Earths could fit inside...Ch. 7 - Asteroid Orbit. Ceres, the largest asteroid, has...Ch. 7 - Density Classification. Calculate the density of a...Ch. 7 - Comparative Weight. Suppose you weigh 100 pounds....Ch. 7 - New Horizons Speed. On its trajectory to Pluto,...Ch. 7 - Planetary Parallax. Suppose observers at Earth’s...
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