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 .
Mosaic Evolution of Subterranean Mammals. Stress is a major driving force of evolution (Hoffman and Parsons 1991; Parsons 2005). Parsons defined stress as an environmental factor causing potential injurious changes to biological systems with the potential for impacts on evolutionary processes.