Why can the angular momentum vector lie on the z axis for two-dimensional rotation in the xy

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Why can the angular momentum vector lie on the z axis for two-dimensional rotation in the xy plane but not for rotation in three-dimensional space?

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Physical Chemistry

ISBN: 978-0321812001

3rd edition

Authors: Thomas Engel, Philip Reid

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Question Posted: May 17, 2018 02:33 AM

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Why can the angular momentum vector lie on the z axis for two-dimensional rotation in the xy

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For rotation in two dimensions the angular momentum ve...View the full answer

Physical Chemistry

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