Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN: 9781337399920
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 24, Problem 15RQ
To determine
The type and location of asteroid that is very dark and gray.
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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,
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Could you jump off the asteroid?
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The diameter of an asteroid is 954 km and its mass is 9.4 x 1020 kg. What is the density in g/cm3?
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Consider an asteroid that orbits in a relatively circular orbit with a semimajor axis a = 2 au
from the Sun. A typical asteroid has an albedo, or reflectivity, A ~ 0.3. At our closest
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Chapter 24 Solutions
Foundations of Astronomy (MindTap Course List)
Ch. 24 - What is the difference between a meteoroid and an...Ch. 24 - What do Widmansttten patterns indicate about the...Ch. 24 - Why is it possible to acquire Moon rocks by...Ch. 24 - Prob. 4RQCh. 24 - Prob. 5RQCh. 24 - Prob. 6RQCh. 24 - Why do astronomers refer to carbonaceous...Ch. 24 - Prob. 8RQCh. 24 - Prob. 9RQCh. 24 - Of all the meteorites shown in Figure 24-2, which...
Ch. 24 - Meteorites were once part of which type of...Ch. 24 - Most sporadic meteors were once part of which...Ch. 24 - Meteors in showers were once part of which type of...Ch. 24 - Prob. 14RQCh. 24 - Prob. 15RQCh. 24 - Why do astronomers conclude that asteroids were...Ch. 24 - A fragment from the surface of a differentiated...Ch. 24 - What evidence indicates that the asteroids are...Ch. 24 - Prob. 19RQCh. 24 - Prob. 20RQCh. 24 - What evidence indicates that some asteroids once...Ch. 24 - How is the composition of meteorites related to...Ch. 24 - Prob. 23RQCh. 24 - Prob. 24RQCh. 24 - What is the difference between a centaur and a...Ch. 24 - What is the difference between a comets dust tail...Ch. 24 - What evidence indicates that a comets nucleus is...Ch. 24 - Why do most short-period comets have prograde...Ch. 24 - What are possible fates (or end-states) for...Ch. 24 - What are the hypotheses for how the bodies in the...Ch. 24 - Prob. 31RQCh. 24 - How would studying the chemical composition of...Ch. 24 - Assuming a night lasts 12 hours, how many total...Ch. 24 - Prob. 2PCh. 24 - If a single asteroid 1 km in diameter were to...Ch. 24 - If a trillion (1012) asteroids, each 1 km in...Ch. 24 - Prob. 5PCh. 24 - The asteroid Vesta has a mass of 2.6 1020 kg and...Ch. 24 - Prob. 7PCh. 24 - What is the maximum angular diameter of the dwarf...Ch. 24 - At what average distances from the Sun would you...Ch. 24 - Prob. 10PCh. 24 - If the velocity of the solar wind is about 4.0 ...Ch. 24 - What is the average distance of Comet Halley from...Ch. 24 - If you saw Comet Halley when the comet was 0.7 AU...Ch. 24 - What is the orbital period of a comet nucleus at...Ch. 24 - The mass of an average comets nucleus is about 1.0...Ch. 24 - Prob. 16PCh. 24 - Prob. 1SOPCh. 24 - Earth orbits 1 AU from the Sun, and the Oort cloud...Ch. 24 - Look at Figure 24-2d. Identify the chondrules by...Ch. 24 - Prob. 2LTLCh. 24 - Prob. 3LTLCh. 24 - Look at the images of Comet Mrkos on the left page...Ch. 24 - Prob. 5LTLCh. 24 - Prob. 6LTLCh. 24 - Prob. 7LTL
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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
- The mass of the asteroids is found mostly in the larger asteroids, so to estimate the total mass we need to consider only the larger objects. Suppose the three largest asteroids-Ceres (1000 km in diameter), Pallas (500 km in diameter), and Vesta (500 km in diameter)-account for half the total mass. Assume that each of these three asteroids has a density of 3 g/cm3 and calculate their total mass. Multiply your result by 2 to obtain an estimate for the mass of the total asteroid belt. How does this compare with the mass of the Oort cloud?arrow_forwardIn addition to the ones mentioned in Exercise 13.3, what is the third, rarer class of asteroids?arrow_forwardHow would studying the chemical composition of only the largest, brightest, and most easily observed asteroids yield potentially misleading information about asteroids in general? Why is this called a selection effect?arrow_forward
- Consider the differentiated meteorites. We think the irons are from the cores, the stony-irons are from the interfaces between mantles and cores, and the stones are from the mantles of their differentiated parent bodies. If these parent bodies were like Earth, what fraction of the meteorites would you expect to consist of irons, stony-irons, and stones? Is this consistent with the observed numbers of each? (Hint: You will need to look up what percent of the volume of Earth is taken up by its core, mantle, and crust.)arrow_forwardThe asteroid Vesta has a mass of 2.59 x 1020 kg and an average radius of about 263 km (2.63 x 102 km). What is its escape velocity (in m/s)? (Hints: Use the formula for escape velocity, V. = 2GM -; remember to convert units to m, kg, and s.) m/s Could you jump off the asteroid? O Yes O Noarrow_forwardAs 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 500arrow_forward
- Suppose there are 106 (1 million) asteroids that are 1.03 km in radius. If they were all combined into single sphere, calculate the radius of this sphere in km.arrow_forwardIf a trillion (1012) asteroids, each 9 km in diameter, were assembled into one spherical body, how large (in km) would it be? (Note: The volume of a sphere = 4 3 ?r3.) km Compare that body's size to the size of Earth given in its celestial profile. d dEarth =arrow_forwardThe asteroid Pallas has a mass of 2.11 x 10^20 kg and an average radius of about 2.6 km (2.56 x 10^2 km) What is the escape velocity in (m/s). (Hint: use the formula for escape velocity; remember to concert units to m, kg, & s). ________ m/s could you jump off the asteroid? -yes -noarrow_forward
- Re-order the numbers so the events occur in the correct order, with the oldest event as number 2, and the youngest event as number 13. 2. Now at roughly 100% of present-day mass and the asteroid bombardment over, Earth begins cooling and differentiating. As the outer layer of the Earth cools and solidifies, lighter elements and compounds rise to the surface while the denser ones sink to the core 3. The now differentiated ice, gas, and dust of the solar accretion disc conglomerates together into asteroids from gravity 4. "The Big Whack" A Mars-sized protoplanet we call Theia collides with primitive Earth, adding even more energy and mass 5. The Big Bang 6. As the early atmosphere cools, water vapor is eventually cool enough to condense into liquid water, eventually covering the planet in an ocean 7. The debris from the collision of Earth and Theia produce a ring in orbit. This ring eventually coalesces into the Moon, just as Earth coalesced from the solar accretion disc 8. A nebula…arrow_forwardIf a trillion (1012) asteroids, each 9 km in diameter, were assembled into one spherical body, how large (in km) would it be? (Note: The volume of a 4 sphere =-tr.) 3 km Compare that body's size to the size of Earth given in its celestial profile. d dEartharrow_forwardAt what average distances (in AU) from the Sun would you expect to find Kirkwood gaps where the orbital period of asteroids are respectively four-ninths, and two-fifths, of the orbital period of Jupiter? (Hint: use Kepler's third law.) inner gap at AU outer gap at AU Compare your results with the figure. 7:2 3:1 8,3 5;2 7:3 9:4 2;1 9:5 7:4 53 8:5 3:2 Resonances Gap Gap Gap Gap GapGap Gap Distance from sun (AU) O The results agree with the figure. O The results do not agree with the figure.arrow_forward
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