Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 7, Problem 3CC
To determine
The reason inferred for the density of the core of the planet, if the density of rocks recovered from its surface is lower than its average density. The average density of a planet can be estimated by measuring the size and extent to which its gravitational pull deflects a nearby spacecraft’s path.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
f. Assuming the Earth as an ideal sphere, determine the percentage volume of the core relative
to the total volume of the earth.
Note: Radius of the Earth is 6371 km, and radius of the core is 3481km.
You decide to go on an interstellar mission to explore some of the newly discovered extrasolar
planets orbiting the star ROTOR. Your spacecraft arrives in the new system, in which there are
five planets. ROTOR is identical to the Sun (in terms of its size, mass, age and composition). From
your observations of these planets, you collect the following data:
Density Average Distance
from star (AU]
Planet
Mass
Radius
Albedo
Temp.
[C]
Surf. Press.
MOI
Rotation
[Earth = 1]
(Earth = 1] [g/cm³]
[Atm.]
Period (Hours]
Factor
SIEVER
EUGENIA
4.0
0.001
2.0
0.1
5.0
1.0
0.3
20
0.8
N/A
3.0
0.2
N/A
0.3
0.4
0.35
20
10
500
1000
5.0
4.0
0.5
0.8
0.4
0.7
-50
MARLENE
CRILE
1.0
1.0
3.0
8.0
1,5
0.0
0.50
0.50
0.25
150
0.4
JANUS
100
12
0.1
10
-80
0.2
200
Figure 1:
А
Rotor
850
890
900
Wavelength (nm)
A
Sun
В
C
860
900
910
Wavelength (nm)
2414
a as
A new Terrestrial planet has been discovered orbiting a
nearby Sun-like star. Astronomers have obtained spectra
of this planet and determined that the atmosphere is
composed of roughly 99% CO2, and the remaining 1% is
mostly N2 and is very thin compared to Earth's
atmosphere. Briefly describe how the planet could have
developed such an atmosphere.
Chapter 7 Solutions
Universe
Ch. 7 - Prob. 1CCCh. 7 - Prob. 2CCCh. 7 - Prob. 3CCCh. 7 - Prob. 4CCCh. 7 - Prob. 5CCCh. 7 - Prob. 6CCCh. 7 - Prob. 7CCCh. 7 - Prob. 8CCCh. 7 - Prob. 9CCCh. 7 - Prob. 10CC
Ch. 7 - Prob. 11CCCh. 7 - Prob. 12CCCh. 7 - Prob. 13CCCh. 7 - Prob. 1CLCCh. 7 - Prob. 2CLCCh. 7 - Prob. 3CLCCh. 7 - Prob. 4CLCCh. 7 - Prob. 1QCh. 7 - Prob. 2QCh. 7 - Prob. 3QCh. 7 - Prob. 4QCh. 7 - Prob. 5QCh. 7 - Prob. 6QCh. 7 - Prob. 7QCh. 7 - Prob. 8QCh. 7 - Prob. 9QCh. 7 - Prob. 10QCh. 7 - Prob. 11QCh. 7 - Prob. 12QCh. 7 - Prob. 13QCh. 7 - Prob. 14QCh. 7 - Prob. 15QCh. 7 - Prob. 16QCh. 7 - Prob. 17QCh. 7 - Prob. 18QCh. 7 - Prob. 19QCh. 7 - Prob. 20QCh. 7 - Prob. 21QCh. 7 - Prob. 22QCh. 7 - Prob. 23QCh. 7 - Prob. 24QCh. 7 - Prob. 25QCh. 7 - Prob. 26QCh. 7 - Prob. 27QCh. 7 - Prob. 28QCh. 7 - Prob. 29QCh. 7 - Prob. 30QCh. 7 - Prob. 31QCh. 7 - Prob. 32QCh. 7 - Prob. 33QCh. 7 - Prob. 34QCh. 7 - Prob. 35QCh. 7 - Prob. 36QCh. 7 - Prob. 37QCh. 7 - Prob. 38QCh. 7 - Prob. 39QCh. 7 - Prob. 40QCh. 7 - Prob. 41Q
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What characteristics must Earths core have to generate a magnetic field?arrow_forwardEarth’s metallic core has about 55% of the planet’s radius. What percentage of Eth’s volume is taken up by the core?arrow_forwardPlanetary scientists are excited about the possibility that some of the moons in the outer solar system might have a global subsurface ocean of liquid water. It's uncertain whether or not Jupiter's moon Callisto has a subsurface ocean, but some scientists think it might. Let's imagine that a short distance below the surface, Callisto has a water layer 20,000 meters thick. Callisto has a radius of 2.410x106 meters. Earth has a radius of 6.378x106 meters, and its oceans are equivalent to a layer of water 3000 meters thick all over the surface of the planet. Which of the following is an accurate comparison of the Earth’s amount of liquid water with this estimate of the amount of water Callisto might have? Group of answer choices If this scenario is correct, Earth and Callisto have roughly the same amount of liquid water. If these scientists are right, Callisto has about one-sixth as much liquid water as the Earth does. If these scientists are right, Callisto has about 11 times as…arrow_forward
- 100% Normal text Arlal 12.5 | I1 1 | 2 | 3 3. Fill out this data table with information you have collected about the solar system planets. Characteristics Unit Mercury Venus Earth 330 4,870 5,970 Mass 1024 g 61 928 1,083 Volume 1024 cm3 5.4 5.4 50 Density g/cm3 58 106 km 100 100 Distance from Sun Radius km Crust Thickness km Atmosphere Height kmarrow_forwardThe mass of the planet is approximately 74.8 times the mass of Jupiter. Calculate the average density of the planet. Give your answer in grams per cubic centimeter.arrow_forwardThe fraction of the energy flux received which is reflected into space is the albedo of Venus, av, which is about 0.76. The fraction of the energy flux which is absorbed is then (1-av) = 1. - 0.76 = 0.24. So the amount of energy actually absorbed by Venus in each second is Lv = (1-av)Ev. Lv = (1-av)Ev = ___________________ ergs/s And next calculate the effective temperature of Venus: Tv4 = (Lv/(4pdv2))/s = Lv/(4spdv2) = __________________ K4 and taking the square root of Tv4 twice in succession we get the effective Temperature Tv: Tv = [Lv/(4spdv2)]0.25 = _________________ K Calculate Venus' emittance assuming that the Venus' actual temperature, Tvr, is 472o C = 745 K: ev = Lv/(4pdv2s Tvr4) = __________________ .arrow_forward
- Pure, solid water ice has an albedo A≈0.35. What is the minimum distance from the Sun at which a rapidly rotating ice cube would remain frozen? Between which two planets does this distance lie?arrow_forward(Ch 13 HW Exercise 13.16 - Enhanced - with Feedback Jupiter's moon lo has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject material as high as 500 km (or even higher) above the surface. lo has a mass of 8.93 × 1022 kg and a radius of 1821 km Part A How high would this material go on earth if it were ejected with the same speed as on lo? (RE = 6370 km, mg = 5.96 × 1024 kg) Express your answer with the appropriate units. НА h= 6.37.10° m Submit Previous Answers Request Answer ? × Incorrect; Try Again; 2 attempts remaining Provide Feedback 8 of 16 > ■Review | Constants Next >arrow_forwardEarth's mass ia 6x10^24 kg and its radius is 6.4x10^6 m. What is the average mass density of Earth? The density of the rocks compromising Earth's outermost layer (its "crust") ranges from 2000 to 3500 kg/m ^3. Based on your answer, what can you conclude about the material deep inside Earth's interior?arrow_forward
- INVEST IGATION 3 1. Fill out this data table with information you have collected (from Handout B: Pluto) about the dwarf planet Pluto. Characteristics Unit Pluto Mass 1024 g 14.6 Volume 1024 Cm3 7 Density g/cm3 2.08 5,900.4 Distance from Sun 106 km 1,185 Radius km Crust Thickness km unknown Atmosphere Height km 60 km Axial Tilt degrees 122.5 Force of Gravity on a 1 kg test mass Length of Day hoursarrow_forwardThe mass of venus is 4.883x10^15 Tg and density of Venus is 5.256 g/cm^3. What is the radius of Venus? Express the answer in the SI unit that will give the smallest number that is greater than 1. Tera (or T) means 10^12arrow_forwardUn tren viaja a 8 m/s cuando de golpe se abre completamente la válvula de paso, lo que implica un cambio uniforme de la velocidad, y se mantiene abierta durante una distancia de 1.5 km. Si la aceleración es de 0.20 m/s2 y es constante, ¿Cuál es la velocidad final?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Foundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
Horizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Kepler's Three Laws Explained; Author: PhysicsHigh;https://www.youtube.com/watch?v=kyR6EO_RMKE;License: Standard YouTube License, CC-BY