21st Century Astronomy (sixth Edition)
6th Edition
ISBN: 9780393675504
Author: Laura Kay, Stacy Palen, George Blumenthal
Publisher: W. W. Norton & Company
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Chapter 9, Problem 18QP
To determine
Where did Earth’s nitrogen came from?
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Chapter 9 Solutions
21st Century Astronomy (sixth Edition)
Ch. 9.1 - Prob. 9.1CYUCh. 9.2 - Prob. 9.2CYUCh. 9.3 - Prob. 9.3ACYUCh. 9.3 - Prob. 9.3BCYUCh. 9.4 - Prob. 9.4CYUCh. 9.5 - Prob. 9.5CYUCh. 9 - Prob. 1QPCh. 9 - Prob. 2QPCh. 9 - Prob. 3QPCh. 9 - Prob. 4QP
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- We think the terrestrial planets formed around solid “seeds” that later grew over time through the accretion of rocks and metals. a) Suppose the Earth grew to its present size in 1 million years through the accretion of particles averaging 100 grams each. On average, how many particles did the Earth capture per second, given that the mass of the Earth is = 5.972 × 10 ^24 kg ? b) If you stood on Earth during its formation and watched a region covering 100 m^2, how many impacts would you expect to see in one hour. Use the impact rate you calculated in part a. You’ll need the following as well: the radius of the Earth is = 6.371 × 10 ^6 m and the surface area of the Earth is 4??^2Eartharrow_forwardHow would the solar system be different if the solar nebula had cooled, with a temperature half its actual value? [select all that apply] options: There would be more comets. Life would have been very unlikely to evolve here. There would be no comets. There would be fewer asteroids. There would be more asteroids. Jovian planets would have formed closer to Sun. Terrestrial planets would be largearrow_forwardPlanetary migration is a new process that has been added to the nebular theory of solar system formation. What type of planet, that does not exist in our solar system, made this change to the theory necessary? super-Earths Jovian planets beyond the "frost line" mini-Neptunes O hot Jupiters terrestrial planets in the habitable zonearrow_forward
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- Do you think Earth could retain an atmosphere of nitrogen for the age of the Solar System? Explain why or why notarrow_forwardQuestion #4: According to the nebular theory, which planet is most likely to be gaseous rather than rocky? A. Venus, because it is the warmest planet and so is more likely to be gaseous B. Mercury, because planets closer to the solar nebula are more likely to be made of gas, like the nebula C. Earth, because the atmosphere consists of nitrogen, oxygen, and other gases, so it is a gaseous planet D. Neptune, because as the planets get farther from the solar nebula, their composition is more icy and gaseous e Education TM Inc. RK12arrow_forwardJupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject material as high as 500 kmkm (or even higher) above the surface. Io has a mass of 8.93×1022kg8.93×1022kg and a radius of 1821 kmkm.arrow_forward
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