We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
160
1
avatar

Challenge Question! A human hair is approximately 22.059 micrometers in diameter. Express this diameter in inches. Remember, 2.54 cm = 1 inch. 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).

 Sep 12, 2018
 #1
avatar+100519 
+1

Using dimensional analysis

 

22.059 micrometers  x 1 cm / 10000 micrometers x 1 in / 2.54 cm

 

[ cancel the units and we have ]

 

[22.059 / [ 10000 * 2.54] in  = 0.0008684 in   =  8.684 x 10-4 in

 

 

 

cool cool cool

 Sep 12, 2018

7 Online Users