Question

a persons eardrum has an area of 0.000200 m^2. How much force does the outside air at 1.00 atm exert on the eardrum

Answer 1

20.3N

Step-by-step explanation:

Given parameters:

Area of the eardrum = 0.0002m²

Pressure on the eardrum = 1atm = 101325Nm⁻²

Unknown:

Force exerted on the eardrum = ?

Solution:

Pressure is the force per unit area impacted on a body.

Pressure =
`(Force )/(area)`

Force = Pressure x area

Now insert the parameters and solve;

Force = 101325Nm⁻² x 0.0002m² = 20.3N