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Mach 1 is the speed at which you break the sound barrier. The speed of sound, or Mach 1, at sea level and under "standard condition" is:

  • 1,116.4 ft/s
  • 340.3 m/s
  • 761.2 mph
  • 1,225.1 km/h
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11y ago
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12y ago

At speeds of 950 to 1,000 km/h (590 to 620 mph) the air flow around the aircraft reaches the speed of sound, and it is reported that the control surfaces no longer affect the direction of flight.

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13y ago

The sound barrier is a term associated with the speed of sound in air. In that light, breaking the sound barrier is done with speed and not with a loud (many decibel) sound. We don't see anyone breaking the sound barrier by exceeding "x" number of decibels, but by exceeding the speed of sound in air.

The speed of sound in air is about 343 meters per second, which is about 1,126 feet per second. That's about 1,236 kilometres per hour, or about 768 miles per hour. To break the sound barrier, a speedster would have to be moving faster than that figure. And because of the shock waves that the vehicle would have to pass through when breaking the sound barrier, that speedster would probably "feel" vibrations in the vehicle when passing through the sound barrier.

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12y ago

340.29 m / s. At sea level

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15y ago

475

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10y ago

1 glynis

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Q: How many mph do you have to go to break the sound barrier?
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Related questions

Can a cobra helicopter break the sound barrier?

No helicopters can break the sound barrier. The fastest speed achieved be a helicopter is 249 mph.


If a plane is flying at 700 MPH with a 100 MPH tail wind and the sound barrier is 660 MPH will it break the sound barrier?

At 700mph( its' ability to go 600 plus 100 more pushing him) it already broke your speed of sound barrier of 660mph.


How fast did chuck yeager go to break the sound barrier?

He broke the sound barrier October 14, 1947.


How do you break a sound barrier?

You break the sound barrier by moving at a speed that is faster than the speed that sound travels. In dry air, sound moves 768 mph which about 1 mile in 5 sec.


What rate of speed is necessary to break the sound barrier in mph?

762mph at sea level.


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About 700 mph on land


Did the thrust ssc break the sound barrier?

Yes it reached a speed of 763 MPH in Nevada in 1997. It had an F4 Phantom Jet engine.


How can planes fly 596 mph when going to Europe and not break the sound barrier?

Because breaking the sound barrier requires exceeding the speed of sound. The speed of sound is approximately 761 miles per hour at seal level at an the air temperature of 59 degrees Fahrenheit.


How fast is a plane to break the speed barrier?

He has to travel at more than 760mph.


Did the blue bird car brake the sound barrier?

Yes, the Blue Bird car broke the world land speed record in 1964 by surpassing the speed of sound, reaching a speed of 763 miles per hour. The achievement was made by driver Donald Campbell at Lake Eyre in Australia.


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It is a car that will do over 1000 mph and break the sound barrier it was also made by ssc the company that made the 1997 thrush ssc car that is currently the fastest car in the world but is yet to be beaten by the bloodhound.


How many mph can a piano sound wave go?

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