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Answers by Npjohns

Answers by Npjohns
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A weather balloon is inflated to a volume of 2.2 x 10^3 L with 37.4 g of helium. What is the density of helium in grams per liter?
answered Jun 26, 2017
6 votes
184k views
If you make an electromagnet using a battery circuit and a steel nail, how can you increase its magnetic strength? A. replace the nail with a copper rod B. wrap more coils of wire around the nail C. use
answered Jan 9, 2016
3 votes
143k views
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