21ST CENT.ASTRONOMY(LL)W/CODE WKBK PKG.
6th Edition
ISBN: 9780393874921
Author: PALEN
Publisher: Norton, W. W. & Company, Inc.
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Chapter 8, Problem 12QP
To determine
The reason for scientists propose an early period of heavy bombardment in the solar system.
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Saturn, as viewed through a telescope, appears as a
a.
spherical and heavily cratered object.
b.
bland and nearly featureless disk.
c.
disk composed of brightly colored belts and bands.
d.
highly elliptical and bright blue disk.
6b) If it is true that asteroids and comets have always been raining down on the moon, then is Clavius a young crater or an old crater?
6c) which neighboring crater is older, Scheiner or Blanchanus? please explain.
6e) Generally speaking, which sides of the crater walls is steeper, inner or outer?
6f) Generally speaking, do the crater floors appear to be above, level with, or below
the general level of the regions surrounding the craters? Why is this the case?
6g) Why are crater floors smoother than their surroundings?
The odd orbits of Nereid and Triton, which are moons of Neptune, indicate that these
a.
moons were captured.
b.
moons formed simultaneously with the planet from the same piece of the solar nebula.
c.
moons broke off from the rapidly rotating planet.
d.
moons formed as the result from a giant impact early in the planet’s history.
e.
orbits were disturbed long ago in an interaction with some other body.
Chapter 8 Solutions
21ST CENT.ASTRONOMY(LL)W/CODE WKBK PKG.
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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- Why are the lunar mountains smooth and rounded rather than having sharp, pointed peaks? A. Because a sheet of ice once covered the moon’s surface billions of years ago. B. Because they rose up from beneath the Moon’s surface due to an increase in pressure from its hot core billions of years ago C. Because micro meteorites impacts have caused their gradual erosion D. Because the moon once had sulfuric acid clouds long agoarrow_forwardChondrites are meteorites that have a. never been heated. b. been heated sufficiently to release volatiles they contained. c. been heated sufficiently to melt the chondrules. d. been completely melted. e. entered Earth’s atmosphere but will be destroyed before reaching the ground.arrow_forwardBecause of the lack of a temperature difference between the equator and poles of Jupiter, the a. cyclonic circulations on Earth are duplicated on Jupiter. b. high- and low-pressure regions are drawn into bands by the planet’s rapid rotation. c. belt-zone circulation is only a temporary phenomenon. d. belt-zone circulation is exceptionally stable. e. belt zone circulation is an illusion produced by the interaction of sunlight and chemicals in the Jovian atmosphere.arrow_forward
- 5) What is the ratio of the number of asteroid impacts on the moon to the number of impacts on Earth? Assume the asteroids are originally traveling 15 km/s and use the following data. Mass: 5.97x1024 kg Earth, 7.3x1022 kg moon Radius: 6372 km Earth, 1738 km moon Note we count the number of craters on the moon to infer the number of impacts on Earth because many Earth craters have been hidden by erosion.arrow_forward14. Saturn's rings a. were created by its incredibly large gravitational capture of asteroids and comets b. have looked basically the same since they formed along with Saturn c. are continually supplied by impacts into small moons d. were created long ago when tidal forces tore apart a large moonarrow_forwardOvals, spots, and storms do not appear prominently in the atmosphere of Saturn because the a. temperature is too low. b. temperature is too high. c. atmospheric chemistry does not permit their development. d. atmosphere is too dense. e. planet’s ring system interferes with storms.arrow_forward
- The short-period comets do NOT have randomly oriented orbits because a. they are affected by the sun’s gravity. b. they are affected by the solar wind. c. they formed in the Kuiper belt, a belt-shaped region in the plane of the solar system. d. their orbits are altered by the drag of their tails in the solar wind. e. they all were originally objects ejected from the asteroid belt.arrow_forwardThe rings of Uranus were discovered a. during an occultation (an eclipse) of a star. b. during an eclipse of one of the moons by the rings. c. during an eclipse of Uranus by the rings. d. as Uranus and the rings passed behind Jupiter. e. by the Voyager 1 spacecraft.arrow_forwardThe Cassini division is a large gap in the rings of Saturn. This gap is most likely produced by a. the reflection of sunlight off dark material. b. resonances between ring particles and the moon Mimas. c. shepherding satellites. d. the absorption of sunlight by dark material.arrow_forward
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