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The time necessary for the decay of one- half sample of a radioactive substance is a _____. mass defect daughter half life nuclide

asked Oct 17, 2017

Chemistry
high-school

2 answers

5 votes

123k views

An acute angle θ is in a right triangle with sin θ = 6/7 . What is the value of cot θ?

asked Jun 5, 2017

Mathematics
high-school

2 answers

0 votes

104k views

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