Answers by Ryszard Czech
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Answers by Ryszard Czech

Answers by Ryszard Czech
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What is the name of the African Empire that dominated the horn of Africa?
answered Feb 7, 2019
4 votes
12.4k views
A 50-mL beaker only has a scale that measures 10, 20, 30, and 40 mL. What is the uncertainty associated with the 50 mL beaker.
answered Nov 26, 2018
3 votes
124k views
Which of the following was a result of the use of trench warfare during World War I?
answered Oct 4, 2018
7 votes
59.6k views
Kepler used the observations and data of which scientist to formulate his laws of planetary motion?
answered Sep 17, 2018
2 votes
80.0k views
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