Question

Got It? for Part 3 1. Air pressure at sea level on earth is 14.7 pounds per square inch. The top of your head has an area of 7.5 square inches. How many pounds of air pressure are pressing on your head? 2. Is your answer reasonable? Explain. digits Copyright © by Savvas Learning Company LLC. All Rights Reserved

Answer 1

$\begin{gathered} P=\frac{F}{A} \\ \text{Where:} \\ P=14.7\text{ } \\ A=7.5 \end{gathered}$

Solving for F:

$\begin{gathered} F=P\times A \\ F=14.7\times7.5=110.25 \end{gathered}$

F = 110.25in²

The answer is reasonable because the pressure is inversely proportional to the area over which it is exerted, the head area is considerable, so the pressure is low