Answers by Daniel Haviv
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Answers by Daniel Haviv

Answers by Daniel Haviv
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how did the mongol dynasty continue and expand the economic and political changes begun under the tang and song dynasties
answered Mar 22, 2018
4 votes
19.4k views
1. An electromagnetic wave in a vacuum has a wavelength of 0.07 m. What is its frequency? f = 3.0 • 108 m/s f = 4.3 • 109 Hz f = 3.0 • 109 Hz f = 4.3 • 108 m/s 2. Which of the following occurs as light
answered Dec 1, 2017
6 votes
143k views
how did living in company towns make union membership more difficult for workers?a - workers received free homes, food, and clothing.b - company guards and agents spied on and reported workers.c - workers
answered Jul 4, 2017
5 votes
190k views
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