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Science-Related Homework Help Geography and Earth Sciences Topic started by: Johnni on Jan 23, 2018



Title: Inches of mercury is something that would only be used in America. Elsewhere in the world, the ...
Post by: Johnni on Jan 23, 2018
Inches of mercury is something that would only be used in America. Elsewhere in the world, the mercury height would be in millimeters, or about 760mm (76cm).
 
  Mercury has a density of about 13.56 g/cm3, or in other words, each cm of mercury weighs about 13,300 dynes. So 760mm of mercury weighs 1,013,000 dynes. 1 mb is 1 dyne/cm2, so what is the air pressure in mb?
  A) 1,000,000 mb B) 1013 mb C) 760 mb D) 1.013 mb


Title: Inches of mercury is something that would only be used in America. Elsewhere in the world, the ...
Post by: ebwilliams25 on Jan 23, 2018
B