Guidelines

How loud does something have to be to create a shockwave?

How loud does something have to be to create a shockwave?

Depends on the material density. But usually it’s 170–190 decibels in the air. This is basically the maximum capacity of air to send sound. After that sounds turns into basically an explosion.

Are all shock waves sound?

Shock waves are not conventional sound waves; a shock wave takes the form of a very sharp change in the gas properties. Shock waves in air are heard as a loud “crack” or “snap” noise.

What is the difference between a sound wave and a shock wave?

Shock waves differ from sound waves in that the wave front, in which compression takes place, is a region of sudden and violent change in stress, density, and temperature. Because of this, shock waves propagate in a manner different from that of ordinary acoustic waves.

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Can a speaker create a shockwave?

No, stereo speakers are only designed to vibrate in order to reproduce sound. Cracking a whip creates weak shock waves, because the whip tip moves faster than the speed of sound.

How fast is a shockwave in mph?

At 50 seconds after the explosion, when the fireball is no longer visible, the blast wave has traveled about 12 miles. It is then traveling at about 784 miles per hour, which is slightly faster than the speed of sound at sea level….Overpressure.

Peak overpressure Maximum Wind Speed
10 psi 294 mph
5 psi 163 mph
2 psi 70 mph

What are shock waves in geography?

A shock wave is an area of very high pressure moving through the air, earth, or water. It is caused by an explosion or an earthquake, or by an object travelling faster than sound. The crime sent shock waves throughout the country.

Are shock waves seismic waves?

When an earthquake occurs, it produces shock, or seismic, waves. Two kinds of shock wave can travel through Earth’s interior – P (primary) and S (secondary). In addition to P and S waves, other types of seismic waves can travel along Earth’s surface. These are often the most destructive waves in an earthquake.

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Can a shockwave knock you down?

It’s the shock wave that’ll knock you dead. Above: Watch the car bomb explode at 3300 frames per second. The high-speed footage reveals the deadly shock wave, invisible to the naked eye. They might escape the fire, but a shock wave can literally liquefy their insides.

How fast does a nuke explode?

Generally, a faster detonation speed results in a higher yield, and vice versa. Modern nuclear weapons nowadays (300–500 kilotons) have a detonation velocity of up to 800km/sec. I assume you mean the light & heat waves; these would move close to the speed of light.

How fast is the blast of a nuke?

The blast wind at sea level may exceed one thousand km/h, or ~300 m/s, approaching the speed of sound in air. The range for blast effects increases with the explosive yield of the weapon and also depends on the burst altitude.

How does a shock wave form?

A shock wave will form at the boundary between the low pressure air and the high pressure air, it will propagate rapidly, and if the pressure difference is sufficient, supersonically, into the low pressure air. It’s a phenomenon of bulk flow – quite different from a sound wave.

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Is sound wave a limiting case of a shock wave?

Answer Wiki. A sound wave is a limiting case of a shock wave, in which the pressure discontinuity across the shock tends to zero. The disturbances are effectively assumed to be infinitesimal in the treatment of sound waves, and there is no change of entropy during the process.

When a wave moves faster than the speed of sound?

When a wave moves faster than the local speed of sound in a fluid, it is a shock wave. Like an ordinary wave, a shock wave carries energy and can propagate through a medium; however, it is characterized by an abrupt, nearly discontinuous change in pressure, temperature and density of the medium.

What is the physics of shock front physics?

Physics in the shock front can become quite complicated. When you have a very strong supersonic shock with a large pressure differential, entropy can also be created across the shock discontinuity. So the conditions are very different than for ordinary sound waves.