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Because the negative pressure is the major factor preventing the lungs from collapsing. If the intrapleural pressure became equal to atmospheric pressure the lungs would recoil and collapse.
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Does word sneer have neither positive nor negative connotations?
The word "sneer" typically carries a negative connotation as it suggests contempt, disdain, or mockery towards someone or something. It is often associated with arrogance or disrespect.
Is the president was put on the spot positive or negative?
It is both For the president it is negative for the interviewer it is positive. Being "put on the spot" means being forced to answer questions that you would rather avoid answering.
What are positive sanction?
Sanctions are penalties that people are dealt if they disobey the law. Positive sanctions can refer to something positive that will happen, rather than a negative penalty.
Why did you enroll in Army JROTC?
To better myself as an individual, to surround myself with positive peer pressure rather than negative peer pressure, and to be a member of a program where people look out for each other, support each other, and see each other as family.
Is the word asset a negative word?
Most persons consider "asset" a positive rather than a negative word. This is always true in accounting, in which the negative of an asset is a liability or debt.
Is a hydroxyl ion a positive ion?
The hydroxyl ion is not a positive ion but rather a negative ion. The hydroxyl ion or anion is also known as hydroxide.
Why direction of current and electron is opposite?
This is because the conventional definition of a current flow is "the flow of POSITIVE charges" (from positive to negative terminal). However, positive charges in conductor do not move. It is only the electrons that are mobile. Hence the electrons will move towards the positive terminal, hence it is in the opposite direction of conventional current.See related links below.Additional AnswerWhen Benjamin Franklin was theorising about the nature of an electric current (long before the discovery of atoms), he thought that it was some sort of 'fluid' that flowed from an area of high pressure, which he labelled as 'positive', to an area of low pressure, which he labelled as 'negative'. Although we know that, in metal conductor at least, an electric current is a flow of negative charges (electrons) that flow from negative to positive, many (but by no means all) textbooks still use Franklin's current direction which is called 'Franklinian Flow' or, more commonly, 'Conventional Flow'.The reason for still using conventional flow seems rather odd, as there is no real advantage of continuing to do so.
What are the positive and negative impacts of the airplane?
A positive impact of airplanes is that we can ship goods from place to place, rather than using a boat or a truck. A negative impact on airplanes is the pollutants from their engines and the amount of wind they use.
Why positive communication with pupils is important?
It is always good to be communicate in the positive rather than the negative; whether it is in teaching or in every day life. It builds people's self confidence rather than tears it down.
What is negative campaigning?
It is trying to win the advantage by referring to negative aspects of an oppenent or of a policy rather than emphasizing one's own positive attributes or preferred policy.
In the direction of current?
Current flows from positive to negative.Electrons flow from negative to positive.This is historic, and arbitrary.Another AnswerThe original answer is not wholly correct, and neither is it correct to say that the direction of an electric current is 'arbitrary'. Current direction is defined in terms of its direction through a load (never through the voltage source, such as a battery or generator).An electric current is a flow of charged particles. In metal conductors, these arenegatively-charged electrons. Therefore, in metal conductors, current flows from negative to positive through a load. This is because the negative electrons in a conductor are repelled by an external negative charge and attracted towards an external positive (or 'less negative') charge.In the 18th century, long before the nature of the atom was understood, scientists, such as Benjamin Franklin believed that an electric current was the flow of some mysterious 'fluid' that moved from a higher pressure to a lower pressure. Naturally, the considered the higher pressure to be 'positive' and the lower pressure to be 'negative'. Therefore, they believed current flowed from 'positive to negative'. Faraday agreed with this direction, based on his observations of his experiments in electrolysis (although he thought that current was a 'field' rather than a 'fluid'). Unfortunately, they were wrong.To distinguish the latter from the former, a direction of positive to negative is termed 'conventional flow', whereas a direction of negative to positive is termed 'electron flow'. Modern textbooks use either 'conventional flow' or 'electron flow', depending on the author's preference.
What does euphoric?
Euphoric recall is when an addict remembers all the positive experiences associated with their addiction rather than the negative experiences.
