2007-04-02 20:07:16 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Speeds above Mach 1.
Mach 1 = 343 m/s
Any speed over the speed of sound (Mach 1), which is approximately 343 m/s, 1,087 ft/s, 761 mph or 1,235 km/h in air at sea level, is said to be supersonic.
Speeds greater than 5 times the speed of sound are sometimes referred to as hypersonic.
Speeds where only some parts of the air around an object (such as the ends of rotor blades) reach supersonic speeds are labelled transonic (typically somewhere between Mach 0.8 and Mach 1.3).
2007-04-02 20:15:28 · answer #1 · answered by ideaquest 7 · 2⤊ 0⤋
The speed of sound depends upon the material through which it is traveling, for example the density and temperature of a material will effect the speed of sound. For example the speed of sound in air (the atmosphere) is about 330 m/s (1188 km/hr), whereas the speed of sound within a iron bar is 6000 m/s (21,600 km/hr).
Many military jets are capable of exceeding the speed of sound in the atmosphere, and produce a sonic boom when they break through the sound barrier.
This sonic boom is equivelent to the bow wave at the front of a boat moving through water. The boat is moving faster than the surface waves produced by thre boat so they all pile up into a relatively large bow wave.
Incidentality, as the speed of sound is completely determined by the properties of the material it is travelling through. There is no concept of the speed of sound in a vacuum, e.g. space.
2007-04-02 20:19:52 · answer #2 · answered by snclucas 1 · 0⤊ 0⤋
You have to travel as fast as 340m/s in a constant atmospheric temperature of 288.2 K in order for you to break the barrier of sound. Speed of sound depends on the temperature of the means on which you are travelling. The higher the temperature, the higher your velocity to break it.
2007-04-02 20:53:51 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Approximately 340 m/s given that you are travelling in the standard atmosphere. There are ultrasonic aircrafts that do that
2007-04-02 20:53:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Check with a fighter pilot, in california, they do it all the time out of edwards air force base.
2007-04-02 20:13:45 · answer #5 · answered by Anonymous · 0⤊ 0⤋
725 Miles per hour or 340 Km/Sec.
2007-04-03 05:07:52 · answer #6 · answered by zahbudar 6 · 0⤊ 0⤋
faster than 344 m/s or 1238 km/h.
2007-04-03 00:18:59 · answer #7 · answered by neutron 3 · 0⤊ 0⤋
725 miles per hour
2007-04-02 21:08:59 · answer #8 · answered by wobbly1954au 1 · 0⤊ 0⤋
850 miles per hour,
but they make cars that go 6x that speed.The speed of light is 186,000 miles per second
2007-04-03 00:07:48 · answer #9 · answered by hkyboy96 5 · 0⤊ 1⤋
Here you go:
http://en.wikipedia.org/wiki/Sonic_boom
2007-04-02 20:16:05 · answer #10 · answered by Anonymous · 0⤊ 0⤋