21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 8, Problem 15QP
To determine
The heating rate of Mars compared to the Earth.
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If we moved Venus out to 1 AU from the Sun (same as Earth), Venus would probably
a.
become more like Earth, with oceans and a temperate climate
b.
remain hot, dry, and dead because it's permanently lost its oceans
c.
become more like Mars, losing most of its atmosphere and freezing
d.
become much less geologically active due to decreased solar heating
We know that both Venus and Mars lack mountain ranges because they both lack
a.
magnetic fields
b.
volcanoes
c.
plate tectonics
d.
atmospheres
Venus is very bright and reflective because of its
a.
high surface temperatures
b.
large number of active volcanoes
c.
thick cover of sulfuric-acid clouds
d.
planet-wide oceans
2.
The first six Soviet Venera landers failed to return pictures and data from Venus because they all
a.
got excessively corroded during their passage through Venus's sulfuric-acid clouds
b.
fell too slowly through Venus's thick atmosphere and got fried before landing
c.
missed their rendezvous withe Venus because of errors in their orbits
d.
got cancelled due to technical or budgetary problems
Chapter 8 Solutions
21st Century Astronomy
Ch. 8.1 - Prob. 8.1CYUCh. 8.2 - Prob. 8.2CYUCh. 8.3 - Prob. 8.3ACYUCh. 8.3 - Prob. 8.3BCYUCh. 8.4 - Prob. 8.4CYUCh. 8.5 - Prob. 8.5CYUCh. 8.6 - Prob. 8.6CYUCh. 8 - Prob. 1QPCh. 8 - Prob. 2QPCh. 8 - Prob. 3QP
Ch. 8 - Prob. 4QPCh. 8 - Prob. 5QPCh. 8 - Prob. 6QPCh. 8 - Prob. 7QPCh. 8 - Prob. 8QPCh. 8 - Prob. 9QPCh. 8 - Prob. 10QPCh. 8 - Prob. 11QPCh. 8 - Prob. 12QPCh. 8 - Prob. 13QPCh. 8 - Prob. 14QPCh. 8 - Prob. 15QPCh. 8 - Prob. 16QPCh. 8 - Prob. 17QPCh. 8 - Prob. 18QPCh. 8 - Prob. 19QPCh. 8 - Prob. 20QPCh. 8 - Prob. 21QPCh. 8 - Prob. 22QPCh. 8 - Prob. 23QPCh. 8 - Prob. 24QPCh. 8 - Prob. 25QPCh. 8 - Prob. 26QPCh. 8 - Prob. 27QPCh. 8 - Prob. 28QPCh. 8 - Prob. 29QPCh. 8 - Prob. 30QPCh. 8 - Prob. 31QPCh. 8 - Prob. 32QPCh. 8 - Prob. 33QPCh. 8 - Prob. 34QPCh. 8 - Prob. 35QPCh. 8 - Prob. 36QPCh. 8 - Prob. 37QPCh. 8 - Prob. 38QPCh. 8 - Prob. 39QPCh. 8 - Prob. 40QPCh. 8 - Prob. 41QPCh. 8 - Prob. 42QPCh. 8 - Prob. 43QPCh. 8 - Prob. 44QPCh. 8 - Prob. 45QP
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- QUESTION 3 The surface of Venus receives a. a lot more sunlight than the surface of the Earth b. much less sunlight than the surface of the Earth c. about as much sunlight as the surface of the Earth QUESTION 4 Venus has very low surface wind speed because a. the greenhouse effect makes the surface temperature nearly uniform b. it has a very thin atmosphere c. the thick clouds don't allow for much convection in the atmosphere d. it doesn't have a large moonarrow_forwardWhich of the following is NOT best explained by Venus's extreme greenhouse effect? a. its extremely high surface temperature b. its extremely uniform surface temperature c. its extremely low surface wind speeds d. its lack of magnetismarrow_forwardWhich planet has impact craters just scattered randomly over its entire surface? a. Mercury b. Venus c. Earth d. Mars 2. We hope to find evidence of past life on Venus by discovering fossils there someday. True Falsearrow_forward
- Describe the current atmosphere on Mars. What evidence suggests that it must have been different in the past?arrow_forwardExplain the runaway refrigerator effect and the role it may have played in the evolution of Mars.arrow_forwardWhy are the atmospheres of Venus and Mars mostly carbon dioxide? Why is the atmosphere of Venus very dense but the atmosphere of Mars is very thin?arrow_forward
- How long would radio signals take to travel from Earth to Venus and back if Venus were at its nearest point to Earth? At its farthest point from Earth? (Notes: The speed of light is 3.00 108 m/s. Necessary data to derive the distances between the objects in those two situations are given in the Celestial Profiles for Earth in Chapter 19 and Venus in this chapter.)arrow_forwardEstimate the amount of water there could be in a global (planet-wide) region of subsurface permafrost on Mars (do the calculations for two permafrost thicknesses, 1 and 10 km, and a concentration of ice in the permafrost of 10% by volume). Compare the two results you get with the amount of water in Earth’s oceans calculated in Example 10.1.arrow_forwardWhat evidence indicates that plate tectonics does not occur on Venus? On Mars?arrow_forward
- Why do astronomers conclude that the crust on Mars must be thicker than Eths crust?arrow_forwardThe first six Soviet Venera landers failed to return pictures and data from Venus because they all a. got excessively corroded during their passage through Venus's sulfuric-acid clouds b. got cancelled due to technical or budgetary problems c. fell too slowly through Venus's thick atmosphere and got fried before landing d. missed their rendezvous withe Venus because of errors in their orbitsarrow_forwardDescribe the planet Venus. Attributes like atmosphere, rotation, etc. should be included in your description.arrow_forward
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