How fast mph is the speed of sound?

How fast mph is the speed of sound?

The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. 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.

Is the speed of sound 1000 mph?

The speed of sound varies depending on the temperature of the air through which the sound moves. 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).

Does sound travel 1 mile per second?

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.

How fast in MPH is Mach One?

So how fast is Mach One? The short answer is that it depends on where you are. But in general, it is a speed that exceeds about 1200 km/h or 750 mph. If you’re capable of going this fast, you will be breaking the sound barrier, and people for miles around will be hearing about it!

What speed is sonic boom?

Sonic boom is an impulsive noise similar to thunder. It is caused by an object moving faster than sound — about 750 miles per hour at sea level.

Is sound faster than a jet?

Sound travels at about 344 m/s (761.2 mph). This is a bit faster than a civilian jet plane (a typical jet on its way from Chicago to New York travels at a peak speed of 550 mph). However, we have planes, mostly used by the military, that can equal and exceed the speed of sound.

What is the fastest sound ever?

Scientists have discovered the fastest possible speed of sound, a zippy 22 miles (36 kilometers) per second. Sound waves move at different speeds in solids, liquids and gases, and within those states of matter — for instance, they travel faster in warmer liquids compared with colder ones.

Has any car hit the speed of sound?

Thrust SSC holds the world land speed record, set on 15 October 1997, and driven by Andy Green, when it achieved a speed of 1,228 km/h (763 mph) and became the first land vehicle to officially break the sound barrier.

Can a car go the speed of sound?

The only car ever to go faster than the speed of sound is Thrust SSC, which set the existing land speed record of 763 mph (1,228 km/h) in Nevada in 1997.

Is lightning hotter than the sun?

In fact, lightning can heat the air it passes through to 50,000 degrees Fahrenheit (5 times hotter than the surface of the sun).

How far away is lightning if you can’t hear it?

There is a quick way to determine how far away lightning is from you. Thunder travels about one mile in five seconds. Once you see the lightning, count until you hear the thunder. Count the number of seconds between seeing lightning and hearing thunder then divide by 5.

When lightning strikes water How far does it travel?

Because seawater is a good conductor, the remaining current penetrates hemispherically downward and fully dissipates less than 10 feet below the surface. It is believed that lethal current spreads horizontally only 20 feet from the position of strike impact.

Is Mach 1 faster than a bullet?

To put this into context, the average bullet travels about 1,700 miles per hour. Mach 1 is about 767 miles per hour. A railgun projectile will travel at Mach 6 – that’s nearly three times faster than the typical bullet.

Why do they call it Mach?

Where does Mach 1 come from? The use and name of Mach numbers was proposed by Swiss engineer Jakob Ackeret in a 1929 lecture in Zurich. Ackeret named the number after the physicist Ernst Mach, who conducted an experiment photographing an object moving faster than the speed of sound in 1887.

Does Mach 1 break the sound barrier?

U.S. Air Force Captain Chuck Yeager, officially broke the sound barrier on October 14, 1947 in the Bell X-1 rocket plane. Yeager passed Mach 1 following a drop from a B-29 airplane, proving that an aircraft with passengers could break the sound barrier without injury or harm.

Is speed of sound ever faster than light?

For the first time, scientists have experimentally demonstrated that sound pulses can travel at velocities faster than the speed of light, c. William Robertson’s team from Middle Tennessee State University also showed that the group velocity of sound waves can become infinite, and even negative.

Can a car go the speed of sound?

The only car ever to go faster than the speed of sound is Thrust SSC, which set the existing land speed record of 763 mph (1,228 km/h) in Nevada in 1997.

Is Sonic speed faster than sound?

Since his recorded speed is 767 mph, Sonic can run a distance of more than 25,000 miles in a day (which is the approximate equatorial circumference of the Earth). Sonic is known to run faster than the speed of sound and can even break the sound barrier.