Quick Answer. The Cessna Skyhawk, a single-engine plane, has a maximum cruising speed of 124 nautical miles per hour, which is just over 140 miles per hour ground speed. A Boeing 747 typically cruises at 567 miles per hour.
Furthermore, the psychosocial effects of extreme events have commonly been viewed as resulting from a complex array of primary and secondary stressors. Primary stressors have been defined as stress that is âinherent in particular major incidents, disasters and emergencies and arising directly from those eventsâ .
Biology of stress. When a stressor is perceived and interpreted, the stress response system starts up a cascade of biological events. As a result, we release the stress hormones adrenaline and cortisol. In scientific lingo, the stress response system is called the hypothalamic-pituitary-adrenal axis (HPA axis).