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.
HOW BREATHING WORKS. GAS EXCHANGE. FIND OUT MORE. The main organs of the respiratory system are the lungsâtwo large organs that expand and contract. Each has a network of airways that end in tiny pockets called alveoli, where oxygen enters the blood and carbon dioxide leavesâa process known as Gas exchange.