At 20 °C (68 °F), the speed of sound in air, is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or 1 km in 2.91 s or one mile in 4.69 s. It depends strongly on temperature as well as the medium through which a sound wave is propagating.

Speed of Sound table chart including Speed of Sound at a known temperature and density of air, Speed of Sound vs Density of Air.

2013年5月31日 · 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). Because gas molecules move more slowly...

2023年6月17日 · The speed of sound in dry air at room temperature is 343 m/s or 1125 ft/s. In physics, the speed of sound is the distance traveled per unit of time by a sound wave through a medium. It is highest for stiff solids and lowest for gases. There is no sound or speed of sound in a vacuum because sound (unlike light) requires a medium in order to ...

2024年7月25日 · To calculate the speed of sound in water, just choose the temperature – Fahrenheit °F or Celsius °C. You can also choose the desired unit – with this tool, you can find the speed of sound in mph, ft/s, or even knots!

The speed of sound depends on several variables, but the only independent variable we need to calculate the speed of sound is the temperature of the air. Enter your air temp and choose your units: The speed of sound: mph: Fahrenheit: knots: Celsius: m/s: Kelvin: ft/s: Rankine: km/h

The 700 mile per hour supersonic flight achieved Mach* 1.06, or 106% the local speed of sound for the humidity and temperature it traveled through. The speed of sound in those conditions was ~660 mph, well below the 770 mph speed of sound at dry, 68° F conditions.

2021年5月13日 · If we consider the atmosphere on a standard day at sea level static conditions, the speed of sound is about 761 mph, or 1100 feet/second. We can use this knowledge to approximately determine how far away a lightning strike has occurred.

An approximate formula for the speed of sound through air in standard atmospheric conditions is: Speed of Sound = 331.45 m/s + 0.6 m/s * Deg C This corresponds to approximately 1100 feet per second, or 750 miles per hour.

2024年5月21日 · At a temperature of 32-degrees Fahrenheit (0 Celsius) the speed of sound drops to 742 mph (1,194 km/p/h). In altitudes above sea level the speed of sound is again different and will vary depending on prevailing factors. The reason for this variance is that sound waves travel by exciting molecules.