Foundations of Astronomy, Enhanced
13th Edition
ISBN: 9781305980686
Author: Michael A. Seeds; Dana Backman
Publisher: Cengage Learning US
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Chapter 19, Problem 19RQ
To determine
Check whether the statement, “Asteroids are more numerous than KBOs” is true or false.
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The asteroid Hygiea has a mass of 8.67 x 1019 kg and an average radius of about 216 km (2.16 x 102 km). What is its escape velocity (in m/s)? (Hints: Use the formula for escape velocity,
2GM
; remember to convert units to m, kg, and s.)
r
e
m/s
Could you jump off the asteroid?
Yes
No
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As of 2012, how many near-Earth asteroids, with sizes over 1km, had been discovered by the Spaceguard survey?
a Only a few dozen
b Nearly 1000
c Nearly 50,000
d About 500
You may enter answers in scientific notation as shown: 1.23 x 105 = 1.23e5
Fill out each quantity for the interaction between the sun and the asteroid:
asteroid data
mass: 7,93 x 1020kg
radius: 5.15 x 10?m
F =
N.
earth data
mass: 5.97 x 1024kg
radius: 6.37 x 10m
G =
M =
unit
m =
unit
8.1 x 1011m
unit
1.50 x 1011m
What is the force between the asteroid and the sun?
sun data
mass: 1.99 x 1030kg
radius: 6.96 x 108m
N
check answers
cannot be determined
Unit 11: universal gravitation, gravitational force problems
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Chapter 19 Solutions
Foundations of Astronomy, Enhanced
Ch. 19 - Why is the solar nebula theory considered a theory...Ch. 19 - Why was the nebular hypothesis never fully...Ch. 19 - What produced the helium now present in the Suns...Ch. 19 - What produced the iron and heavier elements such...Ch. 19 - Prob. 5RQCh. 19 - What evidence can you give that disks of gas and...Ch. 19 - According to the solar nebula theory, why is...Ch. 19 - Prob. 8RQCh. 19 - Prob. 9RQCh. 19 - Why does the solar nebula theory predict that...
Ch. 19 - What evidence can you give that the Solar System...Ch. 19 - Prob. 12RQCh. 19 - Prob. 13RQCh. 19 - Prob. 14RQCh. 19 - Prob. 15RQCh. 19 - Prob. 16RQCh. 19 - Prob. 17RQCh. 19 - Prob. 18RQCh. 19 - Prob. 19RQCh. 19 - Prob. 20RQCh. 19 - Prob. 21RQCh. 19 - What planet in the Solar System is larger than the...Ch. 19 - Why is almost every solid surface in the Solar...Ch. 19 - Prob. 24RQCh. 19 - Prob. 25RQCh. 19 - Prob. 26RQCh. 19 - What is the difference between condensation and...Ch. 19 - Why dont Terrestrial planets have ring systems...Ch. 19 - How does the solar nebula theory help you...Ch. 19 - Prob. 30RQCh. 19 - If rocks obtained from the Moon indicate an age of...Ch. 19 - Which is older, the Moon or the Sun? How do you...Ch. 19 - How does the solar nebula theory explain the...Ch. 19 - Did hydrogen gas condense from the nebula as the...Ch. 19 - Prob. 35RQCh. 19 - What happens if a planet has differentiated? Would...Ch. 19 - Order the following steps in the formation of a...Ch. 19 - Which step(s) listed in the previous question can...Ch. 19 - Describe two processes that could melt the...Ch. 19 - What is the evidence that Jupiter and Saturn are...Ch. 19 - Describe two processes that cleared the solar...Ch. 19 - What is the difference between a planetesimal and...Ch. 19 - Does Uranus have enough mass to have formed by...Ch. 19 - What properties of the gas and dust disks observed...Ch. 19 - Why would the astronomically short lifetime of gas...Ch. 19 - Prob. 46RQCh. 19 - Prob. 47RQCh. 19 - Describe three methods to find extrasolar planets.Ch. 19 - Why is the existence of hot Jupiters puzzling?...Ch. 19 - Prob. 50RQCh. 19 - The evidence is overwhelming that the Grand Canyon...Ch. 19 - Prob. 52RQCh. 19 - Prob. 1DQCh. 19 - Prob. 2DQCh. 19 - Prob. 3DQCh. 19 - Prob. 4DQCh. 19 - Prob. 5DQCh. 19 - Prob. 6DQCh. 19 - If you observed the Solar System from the vantage...Ch. 19 - Venus can be as bright as apparent magnitude 4.7...Ch. 19 - What is the smallest-diameter crater you can...Ch. 19 - Prob. 4PCh. 19 - Prob. 5PCh. 19 - You analyze a sample of a meteorite that landed on...Ch. 19 - You analyze a sample of a meteorite that landed on...Ch. 19 - Prob. 8PCh. 19 - Examine Table 18-2. What might a planets...Ch. 19 - Examine Table 18-2. What might a planets...Ch. 19 - Suppose that Earth grew to its present size in 10...Ch. 19 - Prob. 12PCh. 19 - Prob. 13PCh. 19 - What do you see in this image that indicates this...Ch. 19 - Why do astronomers conclude that the surface of...Ch. 19 - Prob. 3LTLCh. 19 - Prob. 4LTL
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- Give at least two reasons today’s astronomers are so interested in the discovery of additional Earthapproaching asteroids.arrow_forwardSuppose the average mass of each of 20,000 asteroids in the solar system is 1017 kg. Compare the total mass of these asteroids to the mass of Earth. Assuming a spherical shape and a density of 3000 kg/m3, estimate the diameter of an asteroid having this average mass.arrow_forwardApproximately how many asteroids that are 0.99 km in radius would it take to make a planet which has a radius of 6460.0 km?arrow_forward
- Give 10 facts about plutoarrow_forwardThe diameter of an asteroid is 954 km and its mass is 9.4 x 1020 kg. What is the density in g/cm3? g/cm3 Is the asteroid made of water, rock, or a mix? O water (1 g/cm³) O rock (2.5-5 g/cm3) O mix (between 1-2.4 g/cm3) Need Help? Read Itarrow_forwardApproximately how many asteroids that are 0.89 km in radius would it take to make a planet which has a radius of 6590.0 km?arrow_forward
- You may enter answers in scientific notation as shown: 1,23 x 10 = 1.23e5 Fill out each quantity for the interaction between the sun and the asteroid: asteroid data mass: 7,93 x 102ºkg radius: 5.15 x 10?m F = unit G = earth data mass; 5.97 x 1024kg radius: 6.37 x 10m unit M = unit m = unit 8.1 x 1011m r = unit 1.50 x 1011m What is the force between the asteroid and the sun? sun data mass: 1.99 x 1030kg unit radius: 6.96 x 108m finalize check answers cannot be determined (after completing ALL problems) Unit 11: universal gravitation, gravitational force problems Desmos Scientific Online Calculator O11 24 96 & 6.arrow_forward5) 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_forwardYou may enter answers in scientific notation as shown: 1,23 x 105 = 1,23e5 asteroid data mass: 7.93 x 1020kg radius: 5,15 x 10m Fill out each quantity for the interaction between the sun and the asteroid: earth data mass: 5.97 x 1024kg radius: 6.37 x 10m G = M = unit m = unit 8.1 x 1011m unit 1.50 x 1011m What is the force between the asteroid and the sun? sun data mass: 1.99 x 1030kg radius: 6.96 x 108m check answers cannot be determined Unit 11: universal gravitation, gravitational force problems Desmos Scientific Online Calculator Coparrow_forward
- What evidence indicates that some asteroids once had geologically active surfaces?arrow_forwardWhat methods do scientists use to distinguish a meteorite from terrestrial material?arrow_forwardExplain why the planet Venus is differentiated, but asteroid Fraknoi, a very boring and small member of the asteroid belt, is not.arrow_forward
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