A traditional mercury barometer consists of a vertical tube that is open at the bottom and rests in a reservoir of mercury. The tube is closed at the top with a vacuum inside. The atmospheric pressure pushes the mercury up the tube and gives us measures of air pressure. At one point Hurricane Katrina had a pressure of 678mmHg. Which means the column of mercury was 678mm high. What was the air pressure in Pascals? (The density of mercury is 1.36x104 kg/m³.) [Solve this by using the principles and equations discussed in class. Do NOT solve it by a direct conversion of units.] vacuum

A traditional mercury barometer consists of a vertical tube that is open at the bottom and rests in a reservoir of mercury. The tube is closed at the top with a vacuum inside. The atmospheric pressure pushes the mercury up the tube and gives us measures of air pressure. At one point Hurricane Katrina had a pressure of 678mmHg. Which means the column of mercury was 678mm high. What was the air pressure in Pascals? (The density of mercury is 1.36x104 kg/m³.) [Solve this by using the principles and equations discussed in class. Do NOT solve it by a direct conversion of units.] vacuum

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Description: A traditional mercury barometer consists of a vertical tube that is open atthe bottom and rests in a reservoir of mercury. The tube is closed at the top with avacuum inside. The atmospheric pressure pushes the mercury up the tube and givesus measure

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Fluid Pressure

The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.

Gauge Pressure

Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.

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Question

A traditional mercury barometer consists of a vertical tube that is open at
the bottom and rests in a reservoir of mercury. The tube is closed at the top with a
vacuum inside. The atmospheric pressure pushes the mercury up the tube and gives
us measures of air pressure. At one point Hurricane Katrina had a pressure of
678mmHg. Which means the column of mercury was 678mm high. What was the air
pressure in Pascals? (The density of mercury is 1.36x104 kg/m³.) [Solve this by using
the principles and equations discussed in class. Do NOT solve it by a direct conversion of units.]
vacuum
H.

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