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the pressure exerted by a person's lungs can be measured by having the person blow as hard as possible into one side of a manometer produces a 70-cm difference in the heights of the columns of water in the manometer arms, what is the lung pressure?

Respuesta :

Answer:

[tex]p=6860\ Pa[/tex]

Explanation:

Given that:

  • Pressure difference created in the water level of a manometer, [tex]h=70\ cm[/tex]

We have:

density of water, [tex]\rho=1000\ kg.m^{-3}[/tex]

As we know that pressure in terms of liquid column is given as:

[tex]p=\rho.g.h[/tex]

[tex]p=1000\times 9.8\times 0.7[/tex]

[tex]p=6860\ Pa[/tex] is the pressure created by blowing through the lungs.

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