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Given b = 4 and c = -5, evaluate b^2 - c^2. 41 -2 -9
answered
Nov 20, 2017
Mathematics
high-school
6
votes
231k
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How do products of photosynthesis reach the other parts of the plant body? Xylem transport Phloem transport Transpiration
answered
Oct 11, 2017
Biology
high-school
2
votes
88.8k
views
Bohr believed that light is emitted by an electron when a. the electron completes a revolution in its orbit. b. the electron's energy changes. c. the electron's fixed orbit shifts. d. the electron changes
answered
Mar 31, 2017
Physics
high-school
4
votes
144k
views
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