Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 6, Problem 36QAP
To determine
The density of Venus; whether the Venus has iron core or not.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Assume that Venus has an isothermal atmosphere with a surface temperature of 750 K. The surface pressure of Venus
is 90 times the Earth's surface pressure which is about 1013mb. Also assume that the carbon dioxide dominant
atmosphere of Venus is photodissociated and oxygen atoms are produced. These oxygen atoms stop the solar wind
at the ionopause distance where the atmospheric pressure of Venus and the dynamic pressure of the solar wind are
in balance. Accordingly, calculate the lonopause distance of the planet Venus if the solar wind density is 7 #/cm² and
solar wind speed is 410 km/sec.
The 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) = __________________ .
What is the escape velocity is km/s from Venus' exosphere, which begins about 202 km above the surface ? Assume the gravitational constant is G= 6.67 x10-11m3 kg-1s-2, and that's Venus has a mass of 5.2e+24 kg and a radius of 6500.0 km
Chapter 6 Solutions
Understanding Our Universe
Ch. 6.1 - Prob. 6.1CYUCh. 6.2 - Prob. 6.2CYUCh. 6.3 - Prob. 6.3CYUCh. 6.4 - Prob. 6.4CYUCh. 6.5 - Prob. 6.5CYUCh. 6 - Prob. 1QAPCh. 6 - Prob. 2QAPCh. 6 - Prob. 3QAPCh. 6 - Prob. 4QAPCh. 6 - Prob. 5QAP
Ch. 6 - Prob. 6QAPCh. 6 - Prob. 7QAPCh. 6 - Prob. 8QAPCh. 6 - Prob. 9QAPCh. 6 - Prob. 10QAPCh. 6 - Prob. 11QAPCh. 6 - Prob. 12QAPCh. 6 - Prob. 13QAPCh. 6 - Prob. 14QAPCh. 6 - Prob. 15QAPCh. 6 - Prob. 16QAPCh. 6 - Prob. 17QAPCh. 6 - Prob. 18QAPCh. 6 - Prob. 19QAPCh. 6 - Prob. 20QAPCh. 6 - Prob. 21QAPCh. 6 - Prob. 22QAPCh. 6 - Prob. 23QAPCh. 6 - Prob. 24QAPCh. 6 - Prob. 25QAPCh. 6 - Prob. 26QAPCh. 6 - Prob. 27QAPCh. 6 - Prob. 28QAPCh. 6 - Prob. 29QAPCh. 6 - Prob. 30QAPCh. 6 - Prob. 31QAPCh. 6 - Prob. 32QAPCh. 6 - Prob. 33QAPCh. 6 - Prob. 34QAPCh. 6 - Prob. 35QAPCh. 6 - Prob. 36QAPCh. 6 - Prob. 37QAPCh. 6 - Prob. 38QAPCh. 6 - Prob. 39QAPCh. 6 - Prob. 40QAPCh. 6 - Prob. 41QAPCh. 6 - Prob. 42QAPCh. 6 - Prob. 43QAPCh. 6 - Prob. 44QAPCh. 6 - Prob. 45QAP
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 evidence is there that Venus was volcanically active about 300600 million years ago?arrow_forwardWhat evidence can you give that Venus once had significant amounts of water? Where did that water come from? Where did it go?arrow_forwardThe runaway greenhouse effect and its inverse, the runaway refrigerator effect, have led to harsh, uninhabitable conditions on Venus and Mars. Does the greenhouse effect always cause climate changes leading to loss of water and life? Give a reason for your answer.arrow_forward
- 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.arrow_forwardAccording to http://hyperphysics.phy-str.gsu.edu/hbase/solar/venusenv.html, the atmosphere of Venus is approximately 96.5% CO2 and 3.5% N2 by volume. On the surface, where the temperature is about 750 K and the pressure is about 90 atm, what is the density of the atmosphere?arrow_forwardPlease workout the problem on a piece of paper. Equation: PV=nRTarrow_forward
- Which of the following planetary traits is well established? choose one of the following: a) Mercury has a similar compositon to that of our moon, in that they both have a substantial metal content. b) Venus rotates more rapidly than Earth, but in the opposite direction. c) Earth's atmosphere exhibits a slightly stronger greenhouse effect than that seen on Venus. d)Astronomers have precisely calculated the mass of Mercury thanks to artificial satellites sent from Earth.arrow_forwardWhat evidence suggests that Venus has resurfaced within the last half billion years?arrow_forwardThe iron meteorite that created Barringer Crater (Arizona) was 50 m in diameter. It caused a crater 1.2 km (1200 m) in diameter, that is, 24 times bigger than the impactor. Keeping in mind that the size of the crater depends on many factors, such as the type of rocks present in the area, estimate the approximate size of the impactor that produced Mare Serenitatis.arrow_forward
- Atmospheric jet streams on Venus travel at about 300 km/hr. How long does it take a jet stream to circle the planet once? How many times does the jet stream circle the planet during one solar rotation of the planet? (Notes: The circumference of a sphere is c = d, where d is diameter. The diameter and solar rotation period of Venus are given in Celestial Profile: Venus.)arrow_forwardDescribe the four stages of Terrestrial planet development.arrow_forwardWhy do small planets cool faster than large planets? Choose any two of the five Terrestrial worlds and calculate for each one the ratio of its surface area to its volume. Why is this ratio important? (Hint: Does this ratio have anything to do with the ability of a planet to lose internal heat?) (Note: The surface area of a sphere is 4r2, and the volume of a sphere is 43r3.)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStax
Foundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
Kepler's Three Laws Explained; Author: PhysicsHigh;https://www.youtube.com/watch?v=kyR6EO_RMKE;License: Standard YouTube License, CC-BY