21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Question
Chapter 11, Problem 8QP
To determine
The probable reason for a moon revolving opposite to the direction of its planet’s rotation.
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Check out a sample textbook solutionStudents have asked these similar questions
Due to tidal forces, a moon orbiting a planet will eventually
a
always keep the same side toward the planet
b
collide with the planet
c
break up into a number of fragments
d
develop a warmer climate as time goes on
Jupiter's moon Io is very volcanically active, which means it has plate tectonics.
a.
true
b.
false
When tidal bulges are NOT in a direct Earth-moon line but slightly ahead of the moon,
a.
Earth’s gravity weakens.
b.
their gravitational field pulls the moon forward in its orbit, causing it to recede from Earth.
c.
their gravitational field pulls the moon back in its orbit, causing the moon to fall toward Earth.
d.
Earth’s gravity strengthens, causing the moon to orbit faster.
e.
the tidal bulges have no effect on the moon.
The condensation hypothesis for the formation of the moon suggests that the moon and Earth formed as a double planet from the same cloud within the solar nebula. It predicts
a.
that the moon and Earth should have nearly the same mass and radius.
b.
that the surfaces of the moon and Earth should be very similar and show evidence of plate tectonics.
c.
that the moon and Earth should have identical compositions and densities.
d.
all of the above.
e.
a and c.
Chapter 11 Solutions
21st Century Astronomy
Ch. 11.1 - Prob. 11.1CYUCh. 11.2 - Prob. 11.2ACYUCh. 11.2 - Prob. 11.2BCYUCh. 11.3 - Prob. 11.3CYUCh. 11.4 - Prob. 11.4CYUCh. 11 - Prob. 1QPCh. 11 - Prob. 2QPCh. 11 - Prob. 3QPCh. 11 - Prob. 4QPCh. 11 - Prob. 5QP
Ch. 11 - Prob. 6QPCh. 11 - Prob. 7QPCh. 11 - Prob. 8QPCh. 11 - Prob. 9QPCh. 11 - Prob. 10QPCh. 11 - Prob. 11QPCh. 11 - Prob. 12QPCh. 11 - Prob. 13QPCh. 11 - Prob. 14QPCh. 11 - Prob. 15QPCh. 11 - Prob. 16QPCh. 11 - Prob. 17QPCh. 11 - Prob. 18QPCh. 11 - Prob. 19QPCh. 11 - Prob. 20QPCh. 11 - Prob. 21QPCh. 11 - Prob. 22QPCh. 11 - Prob. 23QPCh. 11 - Prob. 24QPCh. 11 - Prob. 25QPCh. 11 - Prob. 26QPCh. 11 - Prob. 27QPCh. 11 - Prob. 28QPCh. 11 - Prob. 29QPCh. 11 - Prob. 31QPCh. 11 - Prob. 32QPCh. 11 - Prob. 33QPCh. 11 - Prob. 34QPCh. 11 - Prob. 35QPCh. 11 - Prob. 36QPCh. 11 - Prob. 37QPCh. 11 - Prob. 38QPCh. 11 - Prob. 40QPCh. 11 - Prob. 41QPCh. 11 - Prob. 42QPCh. 11 - Prob. 43QPCh. 11 - Prob. 44QPCh. 11 - Prob. 45QP
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- That the moon has no magnetic field implies that a. the moon is spinning too slowly to produce a magnetic field. b. the interior of the moon is too hot to produce a magnetic field. c. the crust of the moon is so thick that the magnetic field can not get out of the interior. d. the moon’s core contains little if any molten iron. e. the moon is moving further from Earth.arrow_forwardSaturn, 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.arrow_forwardThe 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_forward
- Chondrites 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_forwardOn the "canteloupe" hemisphere of Neptune's moon Triton, we see channels that were carved by liquid a. water b. lava c. methane d. ammonia e. nitrogen The 2004 landing on Saturn's moon Titan was achieved by the probe called a. Galileo b. Dawn c. Voyager 1 d. Huygens e. New Horizonsarrow_forwardWhy 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_forward
- 18. From where do comets originate?A. Just outside the orbit of JupiterB. A belt between Jupiter and MarsC. between the orbits of Saturn and UranusD. From the surrounding outer regions of the solar systemarrow_forwardBy looking at the overall density of our moon, we know that the vast majority of it is made of: a. Cheese b. Ice c. Water d. Iron e. Rockarrow_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
- Ovals, 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_forwardThe dwarf planet Pluto was discovered in 1930. Since that time, which jovian planet has completed a full revolution around the Sun? a. Jupiter b. Saturn c. Uranus d. Neptune e. More than one of the abovearrow_forwardSome planets have very strong magnetic fields. What features must a planet have to cause this? a.both rapid rotation and a conducting liquid core b.only a rapid rotation c.only a liquid conducting core d.both a rapid rotation and a solid metallic core e.only a metallic corearrow_forward
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