Air moves through the human trachea at $3$ m$/$s during inhalation. A constriction in the trachea leads to a doubling in the air speed. Find the $($approximate$)$ pressure change at the constriction $($versus that in an unconstructed trachea$).$ Use a density for air of $1\mathrm{.}2$ kg$/$m

$3$

$.$

$[$Enter a negative pressure difference for a pressure drop and a positive pressure difference for a pressure gain$]$

$\backslash$Delta

P

$=$ Pa

Is this pressure change significant?

A$.$ The pressure change is significant.

B$.$ The pressure change is negligible $($very small$).$

C$.$ The pressure change is moderate.