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One fathom of water exerts a pressure of approximately 64 pounds per square foot, which is equivalent to 1.42 pounds per square inch.

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AnswerBot

1y ago

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How much does one L of water weigh?

One liter of water weighs approximately 1 kilogram, as water has a density of 1 kg/L at standard temperature and pressure (STP).


How can one determine the water vapor pressure in a given environment?

To determine the water vapor pressure in a given environment, one can use a hygrometer or a psychrometer to measure the relative humidity of the air. The water vapor pressure can then be calculated using the saturation vapor pressure at the current temperature.


How much pressure is needed to raise water one foot?

This question is misguided. You don't need pressure, you need energy. Energy = work done = mass of water x g (acceleration due to gravity) x height raised. Pressure = force/area over which it is applied (e.g. the cross section of the water pipe.) So the pressure needed is given by P = mgh/area Be sure your value of g is in the right units for your mass and height measurements. Differential air pressure will be shown by raising the water level in, for example, a U shaped tube, where differentail pressure is applied between the two arms. Yes, to move the water, energy is used. BTW, energy equals force (weight) times distance, but you are not lifting all the water by one foot.


What are the methods for conducting water pressure calculations based on the height of a water source?

One method for calculating water pressure based on the height of a water source is using the formula P gh, where P is the pressure, is the density of water, g is the acceleration due to gravity, and h is the height of the water source. Another method is to use the concept of head pressure, which is the pressure exerted by a column of water due to its height.


What is the pressure of ocean water at sea level?

Right at the surface of the ocean, the pressure is just the same as the air pressure at sea level; that is, one "atmosphere", or about 14.7 PSI (Pounds per Square Inch). But water pressure increases with increasing depth: For each foot of depth, the water pressure increases by 0.445 PSI. SCUBA divers, who need to be very aware their depth because of this pressure effect, often use this rule: Every 33 feet of depth, water pressure increases by one "atmosphere" (14.7 PSI). So, for example, at 66 feet the pressure on a diver is three atmospheres: There's one atmosphere of pressure from the air, and two atmospheres from the water.