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Light is not considered as a matter, why?
answered
Jan 22, 2018
Chemistry
middle-school
2
votes
23.3k
views
Rewrite with only sin x and cos x. cos 2x + sin x
answered
Jul 16, 2017
Mathematics
high-school
2
votes
96.2k
views
Which element is composed of molecules that each contain a multiple covalent bond?
answered
Mar 31, 2017
Chemistry
high-school
6
votes
191k
views
Help me please it's really hard
answered
Mar 1, 2017
Mathematics
high-school
2
votes
82.3k
views
Who or what is the protagonist in "The Colomber" by Dino Buzzati?
answered
Feb 12, 2017
English
high-school
3
votes
184k
views
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