TOTO,
we're not in Kansas anymore...

A server error occured and unexplained things are happening around us.

Sistema UniversidadVirtual,UAEH

11 sound:"is caused by vibrations and carries energy as a wave through all media – air, water, walls, windows etc. – but not through vacuum. in most

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Sound | Presentation by Sistema UniversidadVirtual,UAEH