Wpisy oznaczone tagiem "Density" (2)  

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I am six feet tall. This cube is one cubic foot of the substance. Its volume is constant but its mass will vary. This cube is one metric ton, its mass is constant but its volume will vary.

Link: www.rasmussen.edu/articles/visualizing-density.asp

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Physicists theorize that quantum phenomena could provide a major boost to batteries, with the potential to increase energy density up to 10 times that of lithium ion batteries.

Link: www.physorg.com/news180704455.html

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