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ad-work [718]
3 years ago
10

When you stifle a sneeze, you can damage delicate tissuesbecause the pressure of the air that is not allowed to escape mayrise b

y up to 45 {\rm kPa}.
If this extra pressure acts on the inside ofyour 8.4-mm-diameter eardrum, what is the outward force?
answer in N's
Physics
1 answer:
anzhelika [568]3 years ago
5 0

Answer:

2.49379624842 N

Explanation:

P = Pressure = 45 kPa

d = Diameter of eardrum = 8.44 mm

A = Area = \pi\dfrac{d^2}{4}

F = Force

Pressure is given by

P=\dfrac{F}{A}

\Rightarrow F=PA

\Rightarrow F=45000\times \pi\dfrac{(8.4\times 10^{-3})^2}{4}

\Rightarrow F=2.49379624842\ N

The outward force is 2.49379624842 N

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