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Physics, 22.06.2019 14:00, smkw04p3ao0n
If element x has 99 protons how many electrons does it have
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Four point charges qa = 2 μc, qb = –5 μc, qc = 2 μc, and qd = –5 μc are located at the corners of a...
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Mathematics, 22.04.2020 22:53
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