Respuesta :
Since we have
[tex]P=\dfrac{F}{S}[/tex]
where P is the pression, F is the force and S is the surface, we can solve the formula for the force as follows
[tex]F=PS[/tex]
In order to have consistent units of measure, we convert
[tex]1\text{atm} = 101325\text{Pa}[/tex]
and we plug the values:
[tex]F=101325\cdot 0.0002=20.265[/tex]
The force exerted by the outside air is 2 * 10⁻⁴ N.
What is the relation between pressure and area?
Pressure = Force / area
Unit of force = Newton(N)
Unit of area = m²
Unit of pressure = atm(N / m²)
Given pressure of the outside air = 1 atm
Given area of the eardrum = 2 * 10⁻⁴ m²
Force = Pressure * area
Force = (1) * (2 * 10⁻⁴) N
Force = 2 * 10⁻⁴ N.
Hence, the force exerted by the outside air is 2 * 10⁻⁴ N.
Learn more about pressure on:
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