Question: Normal atmospheric pressure is 1.013 X 105 Pa. The approach of a storm causes the height of a mercury barometer to drop by 20.0 mm

Normal atmospheric pressure is 1.013 X 105 Pa. The approach of a storm causes the height of a mercury barometer to drop by 20.0 mm from the normal height. What is the atmospheric pressure? (The density of mercury is 13.59 g/cm3.)

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