Typically, when a person coughs, he or she first inhales about 2.20 L of air at 1.00 atm and 25 ∘ C . The epiglottis and the voc
al cords then shut, trapping the air in the lungs, where it is warmed to 37 ∘ C and compressed to a volume of about 1.70 L by the action of the diaphragm and chest muscles. The sudden opening of the epiglottis and vocal cords releases this air explosively. Just prior to this release, what is the approximate pressure of the gas inside the lungs?
This would happen because we have devices such as seismographs to record the motion of the ground during an earthquake. Without that, we wouldn't know how big the earthquake is and how to prepare for survival.
