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  2. Speed of sound - Wikipedia

    en.wikipedia.org/wiki/Speed_of_sound

    For example, while sound travels at 343 m/s in air, it travels at 1481 m/s in water (almost 4.3 times as fast) and at 5120 m/s in iron (almost 15 times as fast). In an exceptionally stiff material such as diamond , sound travels at 12,000 m/s (39,370 ft/s), [ 2 ] – about 35 times its speed in air and about the fastest it can travel under ...

  3. Supersonic speed - Wikipedia

    en.wikipedia.org/wiki/Supersonic_speed

    The sound source is traveling at 1.4 times the speed of sound, c (Mach 1.4). Because the source is moving faster than the sound waves it creates, it actually leads the advancing wavefront. The sound source will pass by a stationary observer before the observer actually hears the sound it creates.

  4. Speeds of sound of the elements - Wikipedia

    en.wikipedia.org/wiki/Speeds_of_sound_of_the...

    The speed of sound in any chemical element in the fluid phase has one temperature-dependent value. In the solid phase, different types of sound wave may be propagated, each with its own speed: among these types of wave are longitudinal (as in fluids), transversal, and (along a surface or plate) extensional. [1]

  5. Sonic boom - Wikipedia

    en.wikipedia.org/wiki/Sonic_boom

    These waves travel at the speed of sound and, as the speed of the object increases, the waves are forced together, or compressed, because they cannot get out of each other's way quickly enough. Eventually, they merge into a single shock wave, which travels at the speed of sound, a critical speed known as Mach 1 , which is approximately 1,192 km ...

  6. Faster-than-light - Wikipedia

    en.wikipedia.org/wiki/Faster-than-light

    Faster-than-light (superluminal or supercausal) travel and communication are the conjectural propagation of matter or information faster than the speed of light in vacuum (c). The special theory of relativity implies that only particles with zero rest mass (i.e., photons ) may travel at the speed of light, and that nothing may travel faster.

  7. Intense jet stream has planes moving faster than the speed of ...

    www.aol.com/intense-jet-stream-planes-moving...

    800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. ... Intense jet stream has planes moving faster than the speed of sound on flights bound for Europe. Chris Harris. January 25, 2025 at ...

  8. Sound - Wikipedia

    en.wikipedia.org/wiki/Sound

    Sound cannot travel through a ... Sound moves the fastest in solid atomic hydrogen at about 36,000 m/s (129,600 km/h; 80,530 mph). ... The way a sound changes over ...

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