Speed of Sound at a known temperature and density of air
| Altitude | Speed of Sound |
| Feet (ft) | Meter (m) | mph |
| 25,000 | 7620 | 692.6 |
| 30,000 | 9144 | 678.1 |
| 35,000 | 10668 | 660.7 |
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Also know, what is the speed of sound at 50000 feet?
Generally, the higher your altitude, the lower the air temperature and the slower the speed of sound. For example, the speed of sound is about 100 mph slower at 50,000 feet. By the way, the speed of sound in water is about 3,140 mph.
Furthermore, how fast is Mach 1 at sea level? approximately 761 mph
Likewise, people ask, what is the speed of sound in feet?
1,125 ft/s
Does Mach change with altitude?
Because the speed of sound increases with air temperature, and air temperature generally decreases with altitude, the true airspeed for a given Mach number generally decreases with altitude.
Related Question Answers
What is the fastest jet?
Lockheed SR-71 Blackbird
How fast is the fastest jet?
Number 1: North American X-15 This aircraft has the current world record for the fastest manned aircraft. Its maximum speed was Mach 6.70 (about 7,200 km/h) which it attained on the 3rd of October 1967 thanks to its pilot William J. “Pete” Knight.How fast is subsonic speed in mph?
Supersonic travel is a rate of travel of an object that exceeds the speed of sound (Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level, this speed is approximately 343.2 m/s (1,126 ft/s; 768 mph; 667.1 kn; 1,236 km/h).What is a Mach 1?
Mach 1, then, is the speed of sound, around 761 mph at sea level on a standard day. The term is also used as a metaphor for high speeds more generally.How fast is hypersonic?
For aircraft speeds which are much greater than the speed of sound, the aircraft is said to be hypersonic. Typical speeds for hypersonic aircraft are greater than 3000 mph and Mach number M greater than five, M > 5.How is Mach measured?
In fluid dynamics, the Mach number (M or Ma) (/m?ːk/; German: [max]) is a dimensionless quantity representing the ratio of flow velocity past a boundary to the local speed of sound. c is the speed of sound in the medium. By definition, at Mach 1, the local flow velocity u is equal to the speed of sound.What is a Mach 2?
The ratio of the speed of an object to the speed of sound in the surrounding medium. For example, an aircraft moving twice as fast as the speed of sound is said to be traveling at Mach 2.What is the speed of sound at 15 degrees Celsius?
At 15 degrees C, the velocity of sound is about 340 m/s in air and 997 m/s in helium gas.How fast is a bullet in mph?
How fast does a Bullet travel in mph? The average bullet travels at 2,500 feet per second (around 1,700 mph).Why is speed of sound so slow?
Sound is slowed down by the necessity of carrying all that bulk along with it. Even in a rigid material, like a steel rod, sound is slowed down by the need to carry the energy from one atom to the next, and atoms are always going to move far slower than the speed of light.How do I calculate speed?
A: For a body moving at a uniform velocity you can calculate the speed by dividing the distance traveled by the amount of time it took, for example one mile in 1/2 hour would give you 2 miles per hour. If the velocity is non-uniform all you can say is what the average speed is. Same calculation.What is sonic velocity?
Simply stated, sonic velocity is the velocity of sound in that fluid (a gas/vapor). It is a maximum that can be achieved by the fluid. As you know, flow is induced due to a pressure difference between the upstream condition and the downstream condition.What is the fastest thing in the world?
?Light—The Fastest Thing Recorded Light is undoubtedly the fastest thing in the universe. In a vacuum, light moves with a speed of 186,282.397 mps. If you moved at this speed around the equator, you would go round the earth about 7 times in one second.What is the highest mach speed?
Guinness World Records recognized NASA's X-43A scramjet with a new world speed record for a jet-powered aircraft - Mach 9.6, or nearly 7,000 mph. The X-43A set the new mark and broke its own world record on its third and final flight on Nov. 16, 2004.What speed is mach20?
Despite the problem, the aircraft reached speeds around Mach 20 (about 15,000 mph) and was able to control its flight for several minutes, officials said.Who broke Mach 1?
Chuck Yeager
What is Mach number formula?
The Mach Number is a dimensionless value useful for analyzing fluid flow dynamics problems where compressibility is a significant factor. The Mach Number can be expressed as. M = v / c (1)What speed is mach10?
The scramjet engine then would use the incredible speed of the craft to compress incoming air for engine combustion, burning hydrogen and compressed oxygen to accelerate to an unbelievable Mach 10, or 7,673 miles per hour. 
