Mach number

Dimensionless quantity in fluid dynamics

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The Mach number, often only Mach, is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound. It is named after the Austrian physicist and philosopher Ernst Mach.

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Oreshnik Missile’s Debut: Russia Unleashes Deadly Hypersonic Oreshnik Missile On Ukraine's Dnipro

Russia has used its hypersonic Oreshnik missile for the first time in an attack on Dnipro, Ukraine, striking at unmatched speeds of..

Oneindia 03 Jun 2025

Mach number

Dimensionless quantity in fluid dynamics

News coverage

Oreshnik Missile’s Debut: Russia Unleashes Deadly Hypersonic Oreshnik Missile On Ukraine's Dnipro

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