what is the difference between stable and unstable air?
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Weather is strongly affected by how stable or unstable the atmosphere is. Stable air means that the weather is likely to be calm. It may rain or snow slowly and steadily, it may be sunny, but the weather will not change quickly. Unstable air means that the weather might change quickly with very little warning.
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As air temperature increases, air can hold more water molecules, and its relative humidity decreases. When temperatures drop, relative humidity increases.
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The amount of water vapor in the air is called absolute humidity. The amount of water vapor in the air as compared with the amount of water that the air could hold is called relative humidity. This amount of space in air that can hold water changes depending on the temperature and pressure.
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Absolute stability means whether system is stable or unstable. Relative Stability gives the degree of stability or how close it is to instability.
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The troposphere gets its heat from the ground, and so temperature decreases with altitude. Warm air rises and cool air sinks and so the troposphere is unstable. In the stratosphere, temperature increases with altitude.
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Hot air is lighter than cold air. The reason fr this is when air gets heated up it expands and becomes less dense than the air surrounding it also the distance between the molecules increases. So the less dense air floats in the much denser air just like ice floats on water as ice is less dense than water.
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Blimps are not a rigid airship meaning that they collapse when deflated. Hot air balloons are an envelope which means, it is capable of containing hot air, a burner, and a basket. The main difference between hot air balloons and blimps or dirigibles is that they do not need a certain gas to fly.
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An air conditioner circulates the internal air of the room over and over again, whereas an air cooler pulls fresh air from outside and then cools it down. Also, air cooler doesn't make the air overly dry like an air conditioner. Because of the way it operates, an air cooler offers better quality of air for your room.
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Stable vs. Beta Releases. A stable release is a version that has been tested as thoroughly as possible and is as reliable as we can make it. ... A "beta" release is a version that has been tested internally and is being tested by the wider community.
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Because warm air rises and cool air sinks, the troposphere is unstable. In the stratosphere, temperature increases with altitude. The stratosphere contains the ozone layer, which protects the planet from the Sun's harmful UV radiation.
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The difference is that water is an incompressible fluid — its density is almost constant as the pressure changes — while air is a compressible fluid — its density changes with pressure. ... Atmospheric pressure is the pressure exerted on a surface by the weight of the atmosphere (a compressible fluid) above it.
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Essentially, dynamic stability is stability measured over a period of time. Static stability does not automatically imply dynamic stability, although a statically unstable airplane cannot be dynamically stable. Stability is determined for stick-fixed and stick-free cases.
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the difference between humidity and relative humidity is that humidity is that humidity is the amount of water vapor in the air, and relative humidity is the amount of water vapor in the air compared to the maximum amount that the air can hold.
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When air rises in the atmosphere it gets cooler and is under less pressure. When air cools, it's not able to hold all of the water vapor it once was. Air also can't hold as much water when air pressure drops. The vapor becomes small water droplets or ice crystals and a cloud is formed.
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The Difference Between Air Coolers & Air Circulators This produces air that is cooler than the surrounding air around it. An air circulator, on the other hand, is designed to help move air around. Not to be confused with a fan, circulators can help balance uneven temperatures within the room.
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In most cases, patients who are awake, oriented and able to speak in full sentences are stable. Patients who present with a rapidly declining mental status are unstable. Patients who are clearly not perfusing adequately and are visibly declining in front of you or over a short period of time are unstable.
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The main difference between neutral shoes and stability shoes are that stability shoes have additional features that reduce how much a foot will pronate and help align the leg more. So, how much your feet pronate will be an important factor in determining the right shoe for you.