When you stifle a sneeze, you can damage delicate tissues because the pressure of the air that is not allowed to escape may rise by up to 45 kPa. If this extra pressure acts on the inside of your 8.4-mm-diameter eardrum, what is the outward force

The outward force is 5934.6N.

Explanation: Pressure is force per area. As the eardrum is a circular organ and has 4.2·m of radius, the area of the organ will be:

Area = π·r²

Area = 3.14·(4.2.)²

Area = 13.2·m²

To calculate force:

P = F/A

F = P·A

F = 45.·13.2·

F = 5934.6N

The outward force is F=5934.6N.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.