Speed of Sound Calculator

The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At 20 °C (68 °F), the speed of sound in air is about 343 metres…

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Mach Number Calculator

M = V/a M is the local Mach number, V is the local flow velocity with respect to the boundaries (either internal, such as an object immersed in the flow, or…

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Gravitational Acceleration Calculator

In physics, gravitational acceleration is the free fall acceleration of an object in vacuum — without any drag. This is the steady gain in speed caused exclusively by the force of gravitational attraction. At given GPS coordinates…

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