What is Sonic Boom ? [part.1]

[daily-science]

Maybe for those of us who live near AU military bases sometimes wonder or maybe many are accustomed when in the day suddenly sounded like a bomb blast booming in the sky, as if the World III war has come to our country. 

When in fact the sound of the explosions was not from a terrorist bomb, artillery or missile weapon, but from an event that occurred in the air when our military fighter jets were flying off to maneuver in a war game.

So what exactly happened? they were not firing weapons or dropping bombs, the explosion was not from a jet airplane. The sounds of the explosions in the air are what is called the "Sonic Boom". And this happens when those fighter jets fly at supersonic speeds or exceed the speed of sound. How does this happen?

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A sonic boom is a sound that we hear when something like, for example, an Airplane, which moves at supersonic speeds / exceeds the speed of sound (340 Meters / sec). The sound will actually be heard when the plane breaks the speed limit of sound and starts to enter the supersonic speed which then produces shock waves. To understand how sonic booms happen, let's take a moment about how the sound mechanisms are.

VOICE ON SUBSONIC SPEED

Sound waves are nothing but a particle collision in the air at a particular frequency generated by a sound source. When an airplane goes below the speed of sound, we can hear it as normal as we hear police car sirens on the streets. When the police car approaches our position, the siren's voice gets louder and slowly slips away as it moves away from us. This happens because of the Doppler effect that occurs in sound waves. But all that happens at a speed slower than the speed of sound and impossible for sound waves to overtake each other or precede each other.

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Comments

[steemcleaners]

Source- https://geekswipe.net/science/physics/how-sonic-boom-works/

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