Question

A person's eardrum has an area of

Answer 1

Since we have

$P=\dfrac{F}{S}$

where P is the pression, F is the force and S is the surface, we can solve the formula for the force as follows

$F=PS$

In order to have consistent units of measure, we convert

$1\text{atm} = 101325\text{Pa}$

and we plug the values:

$F=101325\cdot 0.0002=20.265$