~0.0361 PSI per inch of height
0.0361PSI * 12 inches * 200 Feet = 86.64PSI
In simple terms... gravity ! Gravity is holding the air close to the surface of the Earth. The further away you are from the surface - the lower the gravity - and thus the lower the air pressure.
All pressure is created by gravity. For each meter vertical drop you gain 1 BAR (15lb per square inch) of pressure. Hope that helps :)
Yes.
BOILER EXPLOSION- Caused by a sudden drop in pressure (failure on the steam side) without acorresponding drop in temperature.
A wall cloud marks an area of low pressure within a mesocyclone. The pressure drop causes a temperature drop, which in turn causes water vapr to condense.
Raindrops actually do not keep their shape, and they are also not tear-dropped shape. A raindrop starts as a rounded or spherical shape. As it falls down it will eventually lose its shape. It changes shape due to surface tension, speed, and the pressure of the air. Raindrops tend to end up a spherical drop of water.
The water pressure drop could be due to a clogged aerator at faucet out, a kinked supply line or partially closed shut of that services that fixture.
Dehydration can cause a drop in blood pressure. Be sure you drink enough water to stay hydrated. Pneumonia can also cause a drop in blood pressure, most likely due to dehydration.
Gravity.
Water creates pressure when it is present in the body. Lowering the amount of water in the blood through diuretics lowers blood pressure. Think of a garden hose with water running through it. If you shut off the end where the spout is, the pressure will increase in the hose, if you open it an let the water run out, the pressure inside the hose will drop. The same principle works in your body. If you have less water in it, by urinating more, your blood pressure would drop.
Some causes for a sudden water pressure drop: 1) A big leak on the main supply line. 2) one or more faucets or shower heads opened on the same water line. 3) A utility water pump failure.
when water vapour condenses and forms clouds whichthen produces an air pressure which produces precipitation like a water cycle.