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speed of sound ft s

Author

Mia Russell

Updated on June 07, 2026

In air, for instance, temperature and atmospheric pressure are significant factors. At 0° Centigrade and 1.013 x 105 Newtons per square meter (normal atmospheric pressure), the speed of sound is 331.5 meters/sec, i.e. 1087 ft/sec or 740 miles/hour. At 20°C (68°F) the speed is 1130 ft/sec or 344 m/sec.

What FPS is the speed of sound?

The usual speed of sound is given as about 1,125 f.p.s. when all conditions are “normal.”

What is the speed of sound in KM?

On Earth, the speed of sound at sea level — assuming an air temperature of 59 degrees Fahrenheit (15 degrees Celsius) — is 761.2 mph (1,225 km/h).

What is the speed of sound at 35000 feet?

At 35,000 feet, the cruising altitude of a typical passenger jet, sound travels at about 660 mph (1,062 kmph).

What is the speed of sound at 38 degrees Celsius?

c = 331.3 m/s.

Can sound travel faster than the speed of sound?

Faster than sound? As the speed of sound has a finite (and not so very great after all) value, in theory, an object that makes that sound can catch up with its own “noise” and even go faster.

What is the speed of sound at 85000 feet?

“In fact, five years ago, it could not have been made.” Hypersonic applies to speeds above Mach 5, or five times the speed of sound. The SR-71 cruised at Mach 3.2, more than 2,000 mph, around 85,000 feet.

What is the speed of sound at 30 000 feet?

The speed of sound (Mach 1) varies with altitude and temperature. If an aircraft is travelling at the speed of sound at sea-level then its speed will be 661 knots (760 miles per hour) or if it is travelling at the speed of sound at 30,000 feet then its speed will be 589 knots (677 miles per hour).

How many FPS is Super Sonic?

anything above 1,126 ft/s is supersonic.

Does the speed of sound change with altitude?

As expected, the speed of sound does decrease with altitude for the most part. pressure.

How many kilometers does sound travel 4 hours?

The answer you get should be 4939.2 km.

Who fast is Mach 1?

“Mach Number” was named after the Austrian physicist Ernst Mach. Mach 1 is the speed of sound, which is approximately 760 miles per hour at sea level. An airplane flying less than Mach 1 is traveling at subsonic speeds, faster than Mach 1 would be supersonic speeds and Mach 2 would be twice the speed of sound.

What is the speed of sound in m/s and km h?

At 20 °C (68 °F), the speed of sound in air is about 343 metres per second (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or one kilometre in 2.9 s or one mile in 4.7 s. It depends strongly on temperature as well as the medium through which a sound wave is propagating.