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rarefactions
wave
Sound can only occur where there is "matter". It is created by the atoms of the matter vibrating against each other in a wave form. This can occur where ever there is matter; air, wood, water, metal etc. It can not occur where there is no matter; space, a vacuum.
To be Specific, It would be the ray of light which is moving towards the medium.
By motion,in a compressible fluid.For instance a speaker moving in and out in air.
There are two basic types of waves : transverse and longitudinal. Transverse waves are like a wavy line. They consist of a single pulse of energy moving in a curved and wavy way. Light waves are transverse. Longitudinal waves consist of rarefactions and compressions. In a rarefaction, the particles are very sparse. In a compression, the particles are very dense. Sound waves are longitudinal.
All mechanical waves must have a medium through which to propagate. The medium may be an matter in any phase - solid, liquid, gas, etc. The waves propagate in either transversely or longitudinally modes. Transverse propagation is perpendicular to the direction of motion; some examples of transverse waves are things like a flag rippling in the wind or the waves of a ribbon or curtain moving up and down along the surface. Longitudinal waves move parallel to the direction of propagation as compressions and rarefactions (stretching). Some examples of these waves are sound waves, and compression waves in springs. Some waves, like water waves, may show both transverse and longitudinal character.
sound barrier
sound barrier
The UPS Store, U-Haul, and The Moving Store sells cardboard moving boxes. Big box stores such as Staples and Walmart also sell cardboard moving boxes.
No, but it's moving to a different network.
this is for e2020 students. the answer is: the rope.