Given: One way to force air into an unconscious person’s lungs is to squeeze on a barely inflated balloon appropriately connected to the person. What force, in newtons, must you exert on the balloon with your hands to create a gauge pressure of 69.5 cm H2O, if you squeeze on an effective area of 47.5 cm2? Assume the pressure in the balloon is one atmosphere before you squeeze.
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
Given: One way to force air into an unconscious person’s lungs is to squeeze on a barely inflated balloon appropriately connected to the person.
What force, in newtons, must you exert on the balloon with your hands to create a gauge pressure of 69.5 cm H2O, if you squeeze on an effective area of 47.5 cm2? Assume the pressure in the balloon is one atmosphere before you squeeze.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
