How to calculate the speed of sound?
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.
Does height affect the speed of sound?
The speed of sound in the atmosphere is a constant that depends on the altitude, but an aircraft can move through the air at any desired speed. The ratio of the aircraft's speed to the speed of sound affects the forces on the aircraft. Aeronautical engineers call the ratio of the aircraft's speed to the speed of sound the Mach number, M.
What is the equation for the speed of sound?
v=√Bρ. The speed of sound in a solid the depends on the Young’s modulus of the medium and the density, v=√Yρ. where γ is the adiabatic index, R = 8.31 J/mol • K is the gas constant, TK is the absolute temperature in kelvins, and M is the molecular mass.
Is speed of sound really constant?
The speed of sound remains constant if provided the temperature remains same, because if the temperature increases, the kinetic energy of the particles of the medium (air here) would increase and the sound waves would travel much faster (sound waves are mechanical waves, they propagate due to the particles of the medium).
How fast does sound travel in feet per second?
1100 feet/secondThe speed of sound through the atmosphere is a constant that depends on the daily temperature. On a standard day at sea level static conditions, the speed of sound is about 760 mph, or 1100 feet/second.
How long does it take sound to travel 1000 feet?
that it is moving through. In air, sound travels about 1000 feet (330 m) per second; in water it travels at about 4800 feet (1500 m) per second. The speed of sound is slower than the speed of light.
What is the speed of sound in seconds?
Sound travels roughly 750 mph (1,200 km/h), or approximately one mile every 5 seconds (one kilometer every 3 seconds). The speed actually varies greatly with the temperature, but the thumb rule of 5 seconds per mile (3 seconds per kilometer) is a good approximation.
What is the speed of sound at 40 000 feet?
Speed of Sound at a known temperature and density of airAltitudeSpeed of SoundFeet (ft)Meter (m)mph30,0009144678.135,00010668660.740,00012192659.810 more rows
What is the speed of sound for a bullet?
roughly 1,135 feet per secondFor perspective, the speed of sound is roughly 1,135 feet per second (fps) with some variation for temperature, humidity, and altitude. Many handgun loads propel a bullet faster than sound. All rifles loads do. High-powered rifle bullets travel from 2,000 fps to over 4,000 fps.
Do bullets break the sound barrier?
Breaking Barriers The speed of sound is fast, but bullets move faster. In fact, bullets can move fast enough to break the sound barrier. Contrary to what the name might suggest, the sound barrier is not an actual wall or barrier.
How fast is light years in mph?
670,616,629 mphHow far is a light-year? The speed of light is constant throughout the universe and is known to high precision. In a vacuum, light travels at 670,616,629 mph (1,079,252,849 km/h). To find the distance of a light-year, you multiply this speed by the number of hours in a year (8,766).
How hot is a lightning?
In fact, lightning can heat the air it passes through to 50,000 degrees Fahrenheit (5 times hotter than the surface of the sun). When lightning strikes a tree, the heat vaporizes any water in its path possibly causing the tree to explode or a strip of bark to be blown off.
Is lightning faster than sound?
Lightning and thunder happen at the same time. But you see lightning before you hear thunder because light, which travels a million times faster than sound, arrives almost instantly. Sound, on the other hand, takes about five seconds to travel one mile.
Can a 747 break the sound barrier?
Speed of sound is relative, so it depends on many factors. A 747 will never break the sound barrier.
Can you go to Mach 10?
Sure, there are hypersonic weapons, most of them in testing stages, but to date not a single human was capable of reaching Mach 10 in an aircraft while inside the atmosphere.
What is the highest Mach ever reached?
The X-43A set a new speed record of Mach 9.64 (10,240 km/h; 6,363 mph) at about 33,500 m (110,000 ft) altitude, and further tested the ability of the vehicle to withstand the heat loads involved.
How far can whale sounds travel?
10,000 milesA whale's low frequency sounds can travel up to 10,000 miles. Take out your globe, and using the scale of miles on the key, explore how far this distance is.
How long to go around the world at the speed of sound?
Amazingly, for as many as 5 days after the explosion, weather stations in 50 cities around the globe observed this unprecedented spike in pressure re-occuring like clockwork, approximately every 34 hours. That is roughly how long it takes sound to travel around the entire planet.
How long does it take sound to travel 1?
As you can see, the speed of sound changes depending on the temperature and the humidity; but if you want a round number, then something like 350 meters per second and 1,200 feet per second are reasonable numbers to use. So sound travels 1 kilometer in roughly 3 seconds and 1 mile in roughly 5 seconds.
How far dies sound travel?
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 2.91 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.
How fast is a sound wave?
The speed of sound, known as Mach 1, varies depending on the medium through which a sound wave propagates. In dry, sea level air that is around 25 degrees Celsius, Mach 1 is equal to 340.29 meters per second, or 1,122.96 feet per second. Mach 1 rises with the density of the medium.
How fast does sound travel in water?
Mach 1 rises with the density of the medium. In 25-degree Celsius fresh water, sound propagates at 4,940.1 feet per second. In sea water Mach 1 is equal to 5,148 feet per second, or nearly 3,600 miles per hour. In air the speed of sound is a function of temperature only.
Is speed of sound a function of temperature?
In air the speed of sound is a function of temperature only. Though supersonic aircraft measure speed as a function of external air pressure, this is only an approximate method caused by technical limitations. ADVERTISEMENT.
