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What is the result of the weight of a column of air pushing on an area?
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∙ 11y ago
You might have expected the result to be pressure, but it's not.
Pressure occurs due to the bombardment of air molecules on a surface. The weight of a column of air causes so little pressure that it can be considered negligible.
Laurie Hammes
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Why does the size of the cross-sectional area of a mercury barometer not affect the height of the enclose mercury column?
The height of the column in a mercury barometer is determined by pressure, not force. Fluid pressures depend on density and depth-pressure at the bottom of a wide column of mercury is no different than the pressure at the bottom of a narrow column of mercury of the same depth. The weight of fluid per area of contact is the same for each. Likewise with the surrounding air. Therefore barometers made with wide barometer tubes show the same height as barometers with narrow tubes of mercury.
How does pressure relate to depth?
Pressure = force / area, but > Force (weight) of water = mass * acceleration > Select a depth, choose an area the weight of water is acting on ( say 1 square inch ) calculate the force (weight) of the water column above that area (in pounds) Divide force by area = pressure (pounds per square inch (psi)) Dont forget to add atmospheric pressure (psi) to the answer.
You are the force of air molecules pushing on an area what are you called?
air
How does liquid pressure different with density of liquid?
Imagine three glass tubes with equal cross-section of 1 square cm and of length 100 cm each. Fill the first tube with water to the 75cm mark, the second to the 50cm mark and the third to the 25cm mark. The density of water would be one of the following 1) Mass of the 75cm column with a cross section of 1 sq cm divided by 75 cubic cm 2) Mass of the 50cm column with a cross section of 1 sq cm divided by 50 cubic cm 3) Mass of the 25cm column with a cross section of 1 sq cm divided by 25 cubic cm and in each case should give you an answer close to 1 gm per cubic cm. Thus the density stays the same no matter how high the water is in each tube. On the other hand the pressure at the bottom of each tube is different and is the force exerted per unit area by the column of water in each tube which are again different. We have conveniently selected tubes with 1 sq cm (unit area in CGS system) cross sectional areas. So the weight of the column in each tube would be the pressure. Hence the pressure in the first tube would be 1) Weight of the 75cm water column = 75 x 1 x g = 75g dynes 2) Weight of the 50cm water column = 50 x 1 x g = 50g dynes 3) Weight of the 25cm water column = 25 x 1 x g = 25g dynes Thus density remains the same for a given temperature and pressure but the pressure depends on the weight the column of liquid per unit area.
How does liquid pressure vary with density of liquid?
Imagine a glass tube with equal cross-section of 1 square cm and of length 100 cm. Fill the tube with the liquid of density 'd' to the 75cm mark.The pressure at the bottom of each tube is the force exerted per unit area by the column of liquid in the tube. We have conveniently selected tubes with 1 sq cm (unit area in CGS system) cross sectional areas. So the weight of the column in the tube would be the pressure. Hence the pressure in the tube would be1) Weight of the 75cm liquid column = 75 x d x g = 75dg dynesThe presuure depends on the density in a linear proportion.Read more: How_does_liquid_pressure_different_with_density_of_liquid
The result of the weight of the column of air pushing down on an area?
Air pressure, barometric pressure, the boiling point of water.
Make a sentence with the word air pressure?
A force that is the result of the weight of a column of air pushing down on an area, that is air pressure.
What is the result of weight of a column of air pushing down on a area?
You might have expected the result to be pressure, but it's not. Pressure occurs due to the bombardment of air molecules on a surface. The weight of a column of air causes so little pressure that it can be considered negligible.
What is the result of the weight of a column of air pushing down on a area?
You might have expected the result to be pressure, but it's not. Pressure occurs due to the bombardment of air molecules on a surface. The weight of a column of air causes so little pressure that it can be considered negligible.
The result of the weight of a colim of air pushing down on an area?
kung wubba
What is the weight of pushing down on an area?
the average at sea level is 14.7 psi. "weight" of air is referred to as atmospheric pressure.
What is the weight of air pushing on an area?
14.7 pounds per square inch at sea level.
A concrete column has a volume of 565 m3 and a height of 20 m what is the maxmum weight expressed in newtons that the column can tolerate before fracturing?
area = volume/height 565m3/20m = 28.25m2 weight = max stress * area 20MPa * 28.25m2 = 565 MN (mega newtons or 10^6 newtons
What causes the air pressure drop as you travel upward from earth's surface?
Pressure is the weight of air column on unit area. As you go upward, this air column gets shorter, its weight gets less, hence air pressure gets lower.
What is the force that results from the weight of air pushing on an area?
Pressure. If this is in the open air rather than a closed vessel, it is called atmospheric pressure.
Why does the size of the cross-sectional area of a mercury barometer not affect the height of the enclose mercury column?
The height of the column in a mercury barometer is determined by pressure, not force. Fluid pressures depend on density and depth-pressure at the bottom of a wide column of mercury is no different than the pressure at the bottom of a narrow column of mercury of the same depth. The weight of fluid per area of contact is the same for each. Likewise with the surrounding air. Therefore barometers made with wide barometer tubes show the same height as barometers with narrow tubes of mercury.
What is the advantage of having large vetebrae at the base of the vetebral column?
The weight of the upper body is distributed across a greater area of the vertebrae.
