The local weather forecaster reports that the current barometric pressure is 29.5 inches of mercury. What is the current pressure in atmospheres?
9.99 atm
3.93 atm
0.986 atm
883 atm
1.00 atm

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  2. 29.5in = 29.5in(25.4mm/in)(0.001316Atm/mm) = 0.986 Atm

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