EBK THE COSMIC PERSPECTIVE
9th Edition
ISBN: 9780135161760
Author: Voit
Publisher: VST
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Chapter 3, Problem 54EAP
Halley Orbit. Halley’s Comet orbits the Sun every 76.0 years and has an orbital eccentricity of 0.97.
- Find its average distance from the Sun (semimajor axis).
- Find its perihelion and aphelion distances.
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Chapter 3 Solutions
EBK THE COSMIC PERSPECTIVE
Ch. 3 - Prob. 1VSCCh. 3 - Use the following questions to check your...Ch. 3 - Use the following questions to check your...Ch. 3 - Use the following questions to check your...Ch. 3 - Use the following questions to check your...Ch. 3 - Prob. 6VSCCh. 3 - Prob. 7VSCCh. 3 - Prob. 1EAPCh. 3 - Why did ancient peoples study astronomy? Describe...Ch. 3 - Describe the astronomical origins of our day,...
Ch. 3 - What is a lunar calendar? How can it be kept...Ch. 3 - What do we mean by a model in science?Ch. 3 - Summarize the development of the Greek geocentric...Ch. 3 - What was the Copernican revolution, and how did it...Ch. 3 - 8. What is an ellipse? Define its foci, semimajor...Ch. 3 - 9. State and explain the meaning of each of...Ch. 3 - Describe the three hallmarks of science and how we...Ch. 3 - 11. What is the difference between a hypothesis...Ch. 3 - What is the basic idea behind astrology? Explain...Ch. 3 - Science or Nonscience? Each of the following...Ch. 3 - Science or Nonscience? Each of the following...Ch. 3 - Science or Nonscience?
Each of the following...Ch. 3 - Science or Nonscience?
Each of the following...Ch. 3 - Science or Nonscience?
Each of the following...Ch. 3 - Science or Nonscience? Each of the following...Ch. 3 - Science or Nonscience? Each of the following...Ch. 3 - Science or Nonscience?
Each of the following...Ch. 3 - Science or Nonscience?
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- Comet Halley (Fig. P11.21) approaches the Sun to within 0.570 AU, and its orbital period is 75.6 yr. (AU is the symbol for astronomical unit, where 1 AU = 1.50 1011 m is the mean EarthSun distance.) How far from the Sun will Halleys comet travel before it starts its return journey?arrow_forwardWhich major planet has the largest . . . A. semimajor axis? B. average orbital speed around the Sun? C. orbital period around the Sun? D. eccentricity?arrow_forwardWhat is the semimajor axis of a circle of diameter 24 cm? What is its eccentricity?arrow_forward
- Three possible planetary orbits are shown in Figure 7.9. According to Keplers first law, which orbits are possible and which are not? Explain. FIGURE 7.9arrow_forwardComet Halley has a semi-major axis of 17.7 AU. (The AU, or Astronomical Unit, is the distance from the Sun to the Earth. 1 AU = 1.50x1011 m.) The eccentricity of Comet Halley is 0.967. a. How far is Comet Halley from the sun at Aphelion, the farthest position from the sun? (Give your answer in AU.)? b. What is comet Halley's orbital time? (Give your answer in years.) Note: Using Kepler's third law in the form: P2 = a3 is convenient. This equation works for any object orbiting the sun when the orbital period is in years and the semi major axis is in AU. The reason this works is because this equation is normalized to earth. The AU and year are both 1 for Earth. c. In what year will Comet Halley start to move back toward the sun?arrow_forwardKepler'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.arrow_forward
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- Explain Gravitation and Kepler’s Laws of Planetary Motion?arrow_forwardIn an elliptical orbit, the furthest point of the planet from the Sun is called “aphelion”, the closest point is called “perihelion”. Watch the planet orbit the Sun, see how the force is not always perpendicular to the velocity. For half the orbit the planet speeds up, going fastest at perihelion; slowing for the other half with aphelion being the slowest point in the orbit. Q . Comet NEOWISE (which made a bright appearance in Earth’s skies in July 2020) has a perihelion distance of 0.295 AU and an aphelion distance of 715.14 AU. If its speed was 65 km/s at perihelion, what will be its speed at aphelion? Please, show the process of reaching the answer step by step.arrow_forwardThe dwarf planet Pluto has an elliptical orbit with a semi-major axis of 5.91×10^12 m and eccentricity 0.249. Calculate Pluto's orbital period. Express your answer in seconds. Calculate Pluto's orbital period. Express your answer in earth years. During Pluto's orbit around the sun, what is its closest distance from the sun? Express your answer with the appropriate units. During Pluto's orbit around the sun, what is its farthest distance from the sun? Express your answer with the appropriate units.arrow_forward
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