Which of the following is no longer considered valid? a. the ptolemaic system b. the copernican system

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Which of the following is no longer considered valid?
a. the ptolemaic system
b. the copernican system
c. Kepler’s laws of planetary motion
d. Newton’s law of gravity

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The Physical Universe

ISBN: 978-0077862619

16th edition

Authors: Konrad B Krauskopf, Arthur Beiser

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Question Posted: Mar 10, 2020 06:43 AM

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Which of the following is no longer considered valid? a. the ptolemaic system b. the copernican system

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Ans A Ptolemic system is no longer valid Ptolemic system considers earth is the center of universe ...View the full answer

The Physical Universe

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