Life in the Universe - With Activity Manual and Access
4th Edition
ISBN: 9780134575599
Author: Bennett
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 51IF
New Planet Orbit. A newly discovered planet orbits a distant star with the same mass as the Sun at an average distance of 112 million kilometers. Find the planet’s orbital period.
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Kepler's 1st law says that our Solar System's planets orbit in ellipses around the Sun where the closest distance to the Sun is called perihelion.
Suppose I tell you that there is a planet with a perihelion distance of 2 AU and a semi-major axis of 1.5 AU.
Does this make physical sense? Explain why or why not.
The dwarf planet Pluto has an elliptical orbit with a semi-major axis of 5.91 * 1012 m and eccentricity 0.249. (a) Calculate Pluto’s orbital period. Express your answer in seconds and in earth years. (b) During Pluto’s orbit around the sun, what are its closest and farthest distances from the sun?
Explain Gravitation and Kepler’s Laws of Planetary Motion?
Chapter 2 Solutions
Life in the Universe - With Activity Manual and Access
Ch. 2 - Describe at least three characteristics of Greek...Ch. 2 - What do we mean by a model of nature? Summarize...Ch. 2 - What is apparent retrograde motion, and why was it...Ch. 2 - Who first proposed the idea that Earth is a planet...Ch. 2 - Prob. 5RQCh. 2 - What was the Copernican revolution, and how did it...Ch. 2 - Why didnt Copernicuss model gain immediate...Ch. 2 - State and explain each of Keplers laws of...Ch. 2 - Briefly describe three reasonable objections to...Ch. 2 - How did Newtons discoveries about the laws of...
Ch. 2 - How did the Copernican revolution affect scholarly...Ch. 2 - What is the difference between a hypothesis and a...Ch. 2 - Describe each of the three hallmarks of science...Ch. 2 - What is Occams razor? Give an example of how it...Ch. 2 - Why doesnt science accept personal testimony as...Ch. 2 - In what sense is gravity both a fact and a theory?...Ch. 2 - What is Newtons universal law of gravitation?...Ch. 2 - Prob. 18RQCh. 2 - Lionel Messi is the best soccer player of his...Ch. 2 - Several kilometers below its surface, Europa has...Ch. 2 - My house is haunted by ghosts, who make the...Ch. 2 - There are no lakes or seas on Mars today.Ch. 2 - All life in the universe must use DNA as its...Ch. 2 - Children born when Jupiter is in the constellation...Ch. 2 - Prob. 25TYUCh. 2 - Newtons law of gravity explains the orbits of...Ch. 2 - God created the laws of motion that were...Ch. 2 - Prob. 28TYUCh. 2 - In Ptolemys geocentric model, the retrograde...Ch. 2 - Which of the following was not a major advantage...Ch. 2 - Earth is closer to the Sun in January than in...Ch. 2 - According to Keplers third law, (a) Mercury...Ch. 2 - Tycho Brahes contributions to astronomy included...Ch. 2 - Galileos contributions to astronomy included (a)...Ch. 2 - Which of the following is not true about...Ch. 2 - Which of the following is not true about a...Ch. 2 - How did the Copernican revolution alter...Ch. 2 - When Einsteins theory of gravity (general...Ch. 2 - Greek Models. As we discussed in this chapter, the...Ch. 2 - Copernican Players. Using a bulleted list format,...Ch. 2 - Atomists and Aristotelians. The ancient Greek...Ch. 2 - Influence on History. Based on what you have...Ch. 2 - Sedna Orbit. The object Sedna orbits our Sun at an...Ch. 2 - Eris Orbit. The dwarf planet Eris, which is...Ch. 2 - New Planet Orbit. A newly discovered planet orbits...Ch. 2 - Halleys Orbit. Halleys Comet orbits the Sun every...Ch. 2 - Newtons Universal Law of Gravitation. a. How does...Ch. 2 - Science and Religion. Science and religion are...Ch. 2 - The Impact of Science. The modern world is filled...Ch. 2 - Absolute Truth. An important issue in the...Ch. 2 - Pseudoscience. Choose a pseudoscientific claim...Ch. 2 - Prob. 60WP
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- We sent a probe out to orbit the planet Kerbal at a distance of 5.5x107m from the middle of the planet. It took our probe 3.5x105s to orbit the planet. Which equation will be used to calculate the mass of planet Kerbal? Possible Formulas that can be used to answer the question: v=(2πr)/T ac=v2/r ac=(4π2r)/T2 Fc=mac Fg=mg F=(Gm1m2)/d2 g=Gm/r2 T2=(4π2/Gm)r3 v=√(Gm)/r g=9.80m/s2 G=6.67x10-11 (N∙m2)/kg2arrow_forwardA newly discovered planet orbits a distant star with the same mass as the Sun at an average distance of 122 million kilometers. Its orbital eccentricity is 0.6. What is the planet's orbital period? And how do you find the planet's nearest and farthest orbital distances from its star?arrow_forwardUs Kepler's 3rd Law to calculate the mass of a star which has a planet orbiting at 2.35 A.U. and takes 4.56 Earth years to complete one full orbit. a. 0.600-0.610 b. 0.623-0.625 c. 0.653-0.675 d. 0.733-0.775arrow_forward
- Use Kepler's Third Law to determine how many days it takes a spacecraft to travel in an elliptical orbit from a point 6670km from the Earth's center to the Moon, 385000km from the Earth's center.arrow_forwardPlanet X has 20 times the mass of the earth and four times the earth's radius. It orbits star Y at a distance of 18 AU, where 1 AU is the earth-sun distance. Star Y has twice the mass of our sun. What is the orbital period of Planet X in years?arrow_forwardWhat is the semimajor axis of a circle of diameter 24 cm? What is its eccentricity?arrow_forward
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Kepler's Three Laws Explained; Author: PhysicsHigh;https://www.youtube.com/watch?v=kyR6EO_RMKE;License: Standard YouTube License, CC-BY