Scenario 2 For a person at rest, the velocity v in liters per second) of airflow during a respiratory cycle (the

time from the beginning of one breath to the beginning of the next) is given by

v=0.85 + sin

where t is the time (in seconds). (Inhalation occurs when v > 0, and exhalation occurs when v

<0.)

(a) Find the time for one full respiratory cycle.

Before tuberculosis was understood to be a communicable disease, and before the discovery of antibiotics to treat it, a major outbreak could kill or cripple a significant portion of a nation’s labor force. how would such an event affect the economy? illustrate the effect by dragging to shift either the aggregate demand curve or the long-run aggregate supply curve.

Of the following choices, which ones are characteristics of west african society? select all that apply. a. arabic was the main language used when trading with other societies. b. christianity was the only religion practiced in villages. c. slaves had no rights and were only given specific farming tasks. d. skilled workers were a higher level in the caste system than traders. e. religious rituals encouraged the honoring of ancestors.

Which is the best location for farming? ( southwest asia ) a: east of the jordan river b: central syria c: southern israel d: the coast of lebanon