ANSWERS: 2
-
Because it refers to the method of measuring airspeed that was developed by the Austrian physicist Ernst Mach. More information: http://www.centennialofflight.gov/essay/Dictionary/sound_barrier/DI94.htm
-
MACH is calulated as follows: MACH # = Speed of Object / Speed of Sound Therefore, the only time Mach can equal 1 is when the speed of the object is exactly the speed of sound. To learn more about how MACH is calculated, go here - http://www.grc.nasa.gov/WWW/K-12/airplane/mach.html BuzbyB also referred a very good link with - http://www.centennialofflight.gov/essay/Dictionary/sound_barrier/DI94.htm Enjoy!
Copyright 2023, Wired Ivy, LLC

by 