What is sonic boom? Sonic boom is an impulsive noise that sounds a lot like thunder. It is caused by an object moving faster than sound, about 750 miles per hour at sea level. An aircraft traveling through the atmosphere continuously produces air-pressure waves similar to the water waves caused by a ship's bow. When the aircraft exceeds the speed of sound, these pressure waves combine and form shock waves which travel forward from where it …
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…test theories of sonic boom. (Source 2) Sources 1.<Tab/>Bruce Holms. www.rense.com/general8/boom.htm. Last updated 2-4-01. Accessed 21-11-04. 2.<Tab/>United States Air Force. www.sky-flash.com/boom.htm. Accessed 21-11-04. 3.<Tab/>Major Richard Roberds. www.airpower.maxwell.af.mil/airchronicles/aureview/1971/jul-<Tab/>aug/roberds.html. Last updated 4-5-04. Accessed 21-11-04.