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A human hair is approximately 22.637 micrometers in diameter. Express this diameter in meters. Note, your answer may be decimal (e.g. 0.03 m) or in scientific notation (e.g. 3.0E-2; note that "E-2" means ten raised to the -2 power).

 
Guest Sep 12, 2018
 #1
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Use dimensional analysis.
The micrometers cancel out leaving you with meters.
\((2.2637*10^4\mu m)*\frac{1m}{10^6\mu m}\\ 2.2637*10^{-2}m\)
 

 
Guest Sep 12, 2018
 #2
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The correct answer is: 22.637 / 1,000,000 =2.2637E-5 meters.

 
Guest Sep 13, 2018

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