In the mass on a spring system: The period of oscillation DOES depend on the mass according to the equation: T = 2*pi*sqrt(m/k) T = period pi = 3.14 m = mass k = spring constant (i.e. how stiff the spring is) It DOES NOT depend on the length of the spring (which is why you don't see it in the above equation).
Pulmonary gas exchange takes place in the lungs between the alveoli and the blood. It is also referred to as âexternal respirationâ as it involves the respiratory processes that have contact with the external environment.
Gas Exchange. Gas exchange refers to the passing of Oxygen from the alveoli into the blood flow and the excess Carbon Dioxide (CO2) within the blood flow passing back into the alveoli to be breathed out. Each tiny alveoli is covered in a network of capillaries (tiny blood vessels) which make this process easier.