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What forces cause normal expiration?
During normal expiration, the primary force responsible is the relaxation of the diaphragm and external intercostal muscles, leading to a decrease in thoracic volume. This increase in pressure within the lungs causes air to be pushed out. Additionally, elastic recoil of the lungs and chest wall helps to facilitate expiration by returning them to their resting position after inhalation.
What does the friction force vs normal force graph reveal about the relationship between friction force and normal force?
The friction force vs normal force graph shows that there is a direct relationship between the friction force and the normal force. As the normal force increases, the friction force also increases. This indicates that the friction force is proportional to the normal force.
What does the friction vs normal force graph reveal about the relationship between friction and the normal force?
The friction vs normal force graph shows that there is a direct relationship between friction and the normal force. As the normal force increases, the friction force also increases. This indicates that the friction force is dependent on the normal force acting on an object.
What is Normal expiration is brought on by?
Normal expiration is brought on by the relaxation of the diaphragm and external intercostal muscles, causing the thoracic cavity to decrease in volume, which increases the pressure in the lungs. This increased pressure pushes air out of the lungs.
Why is the support force on an object called the normal force?
The support force on an object is called the normal force because it is perpendicular (normal) to the surface on which the object rests. It acts in the opposite direction to the force of gravity to keep the object in equilibrium.
