10.4 M water column is 1 bar,so depth/10.4 will give the pressure in bar
2006-08-20 07:04:56
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answer #1
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answered by ramg 2
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Height of the water from free surface multiplied by the density of the water and the gravitational constant gives the pressure at the bottom.
Hydrostatic pressure is the pressure due to the weight of a fluid.
=Ï *g*h
where:
Ï (rho) is the density of the fluid (i.e. the practical density of fresh water is 1000 kg/m3);
g is the acceleration due to gravity (approx. 9.81 m/s2 on Earth's surface);
h is the height of the fluid column (i.e. meters or feet).
2006-08-20 05:47:01
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answer #2
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answered by Anonymous
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Depth of water in feet x weight of 1 cu ft of water in lbs = pressure in lbs per square foot
1 cu foot water = 62.42718356 pounds
To convert lbs per sq ft to lbs per sq inch, divide by 144 (= 12 x 12).
Since = 62.42718356/144 = 0.4335, multiply the depth of the water by 0.4335 to obtain pressure in PSI.
2006-08-20 00:35:28
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answer #3
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answered by Owlwings 7
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It's just the height of the water multiplied by the density of the water and the gravitational constant.
In metrical units, 9800 pascal for each meter of water. Or one atmosphere (1000 milibar, 100,000 pascal) per 10.2 meter.
2006-08-20 00:34:15
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answer #4
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answered by helene_thygesen 4
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There is an easy way to remember if you know that water weighs 62.4 pounds per square foot. Divide that by its area (144 square inches per square foot) and you get the weight (and pressure due to one foot of water one square inch in area. 62.4/144 = 0.433.....psi.
Multiplying 0.433 times the depth in feet will give you the weight (and pressure) of a column of water that tall in psi (pounds per square inches).
Example:
Depth equals 100 ft.
Pressure equals 100 x 0.433 = 43.3 psi.
2006-08-20 01:06:51
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answer #5
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answered by Kes 7
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depth of water in feet divided by .434 gives you the pressure in Lbs.
2006-08-20 00:35:43
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answer #6
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answered by John E 3
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