21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 7, Problem 5QP
To determine
Select the correct option for detects of the spectroscopic radial velocity method.
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(1) A spherical planet has a radius of 2,000 km and a mass of 1025 kg. Calculate its density (mass/volume) in kilograms per cubic meter.
(2) How many of the atoms in Question (3) can fit within a spherical planet with a diameter of
2 X 104 km?
(3) An asteroid’s radius is 200 m and its distance from Earth is 107 km. What angle in degrees (θ) will it subtend? Use the equation θ = 57 (diameter) / distance
2. What percentage of the mass of the solar nebula consisted of elements other than hydrogen and helium?
Our Solar System consist of two distinctly different types of planets.
A. Describe how these planets differ in their general characteristics.
B. Explain the cause of these differences
Chapter 7 Solutions
21st Century Astronomy
Ch. 7.1 - Prob. 7.1CYUCh. 7.2 - Prob. 7.2CYUCh. 7.3 - Prob. 7.3CYUCh. 7.4 - Prob. 7.4CYUCh. 7.5 - Prob. 7.5CYUCh. 7 - Prob. 1QPCh. 7 - Prob. 2QPCh. 7 - Prob. 3QPCh. 7 - Prob. 4QPCh. 7 - Prob. 5QP
Ch. 7 - Prob. 6QPCh. 7 - Prob. 7QPCh. 7 - Prob. 8QPCh. 7 - Prob. 9QPCh. 7 - Prob. 10QPCh. 7 - Prob. 11QPCh. 7 - Prob. 12QPCh. 7 - Prob. 13QPCh. 7 - Prob. 14QPCh. 7 - Prob. 15QPCh. 7 - Prob. 16QPCh. 7 - Prob. 17QPCh. 7 - Prob. 18QPCh. 7 - Prob. 19QPCh. 7 - Prob. 20QPCh. 7 - Prob. 21QPCh. 7 - Prob. 22QPCh. 7 - Prob. 23QPCh. 7 - Prob. 24QPCh. 7 - Prob. 25QPCh. 7 - Prob. 26QPCh. 7 - Prob. 27QPCh. 7 - Prob. 28QPCh. 7 - Prob. 29QPCh. 7 - Prob. 30QPCh. 7 - Prob. 31QPCh. 7 - Prob. 32QPCh. 7 - Prob. 33QPCh. 7 - Prob. 34QPCh. 7 - Prob. 35QPCh. 7 - Prob. 36QPCh. 7 - Prob. 37QPCh. 7 - Prob. 38QPCh. 7 - Prob. 39QPCh. 7 - Prob. 40QPCh. 7 - Prob. 41QPCh. 7 - Prob. 42QPCh. 7 - Prob. 43QPCh. 7 - Prob. 44QPCh. 7 - Prob. 45QP
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- According to the solar nebula theory, why is the Earth’s orbit nearly in the plane of the Sun’s equator?arrow_forwardBarnard’s Star, the second closest star to us, is about 56 trillion (5.61012) km away. Calculate how far it would be using the scale model of the solar system given in Overview of Our Planetary System.arrow_forwardHow Do We know? How can scientists know anything about how the Solar System formed, given that there was nobody there to witness those events?arrow_forward
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- 7. Why does a solar nebula flatten into a disk instead of a sphere, even though the gravity of a nebula pulls in all directions?arrow_forwardA planet orbits a star in a different stellar system The mass of the planet is 2 times Jupiter's mass and 5 times the distance from the star than Jupiter is from the sun How does the force of gravity change for this new system if the star is 4 Solar Mass?arrow_forwardDescribe the differences in the chemical makeup of the inner and outer parts of the solar system. What is the relationship between what the planets are made of and the temperature where they formed?arrow_forward
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