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All of the following elements produce magnetic fields except for a. copper. b. nickel. c. cobalt. d. iron.
asked
Oct 2, 2017
Chemistry
high-school
2
answers
4
votes
201k
views
What is the common difference for the sequence shown below? 2, 6, 18, 54, 162, ...
asked
May 24, 2017
Mathematics
high-school
1
answer
2
votes
229k
views
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