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Mars has about 1/10th of Earth's mass, is located at 1.6 AU, and has a rotational period very similar to that of Earth (1.02 days). Imagine a planetary system around the star Alpha Centauri A (approximately same age, radius and surface temperature as the Sun) with terrestrial planets Odin and Freyja with masses and distances to the star as indicated in the figure below. Assume the planetary system around Alpha Centauri A has evolved similarly to the solar system, and has the same age. A. Discuss in one or two sentences what level of current geological activity you would expect Odin and Freyja to have, compare to that of the Earth. B. Discuss in one or two sentences the global magnetic field you would expect Odin and Freyja to have, compared to that of the Earth. Sun Alpha Cen A Earth M=m, P=1 day 1 AU Odin M=m, P=200 days Mars M=0.1m, P=1.02 days 1.6 AU Freyja M=m, P=1 day

Mars has about 1/10th of Earth's mass, is located at 1.6 AU, and has a rotational period very similar to that of Earth (1.02 days). Imagine a planetary system around the star Alpha Centauri A (approximately same age, radius and surface temperature as the Sun) with terrestrial planets Odin and Freyja with masses and distances to the star as indicated in the figure below. Assume the planetary system around Alpha Centauri A has evolved similarly to the solar system, and has the same age. A. Discuss in one or two sentences what level of current geological activity you would expect Odin and Freyja to have, compare to that of the Earth. B. Discuss in one or two sentences the global magnetic field you would expect Odin and Freyja to have, compared to that of the Earth. Sun Alpha Cen A Earth M=m, P=1 day 1 AU Odin M=m, P=200 days Mars M=0.1m, P=1.02 days 1.6 AU Freyja M=m, P=1 day

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Mars has about 1/10th of Earth's mass, is located at 1.6 AU, and has a rotational period very similar to that of Earth (1.02 days). Imagine a planetary system around the star Alpha Centauri A (approximately same age, radius and surface temperature as the Sun) with terrestrial planets Odin and Freyja with masses and distances to the star as indicated in the figure below. Assume the planetary system around Alpha Centauri A has evolved similarly to the solar system, and has the same age. A. Discuss in one or two sentences what level of current geological activity you would expect Odin and Freyja to have, compared to that of the Earth. B. Discuss in one or two sentences the global magnetic field you would expect Odin and Freyja to have, compared to that of the Earth. Sun Alpha Cen A Earth M=m, P=1 day 1 AU Odin M=m, P=200 days Mars M=0.1m, P=1.02 days 1.6 AU Freyja M=m, P=1 day
Transcribed Image Text:Mars has about 1/10th of Earth's mass, is located at 1.6 AU, and has a rotational period very similar to that of Earth (1.02 days). Imagine a planetary system around the star Alpha Centauri A (approximately same age, radius and surface temperature as the Sun) with terrestrial planets Odin and Freyja with masses and distances to the star as indicated in the figure below. Assume the planetary system around Alpha Centauri A has evolved similarly to the solar system, and has the same age. A. Discuss in one or two sentences what level of current geological activity you would expect Odin and Freyja to have, compared to that of the Earth. B. Discuss in one or two sentences the global magnetic field you would expect Odin and Freyja to have, compared to that of the Earth. Sun Alpha Cen A Earth M=m, P=1 day 1 AU Odin M=m, P=200 days Mars M=0.1m, P=1.02 days 1.6 AU Freyja M=m, P=1 day
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