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The Energy Calculator in Relativistic Events will calculate the:

- The energy of a particle moving at high speed, comparable to the speed of light

**Calculation Parameters:** All relativistic events are supposed to occur in vacuum; any motion is one-dimensional; all systems are inertial.

The relativistic energy of particle is J [Joule] |

Relativistic energy of particle calculation |
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ε = m_{0} ∙ c^{3} √1/c^{2} - v^{2}ε = ∙ ^{3} √1/^{2} - ^{2}ε = ∙ √1/ - ε = ∙ √1/ε = ∙ √ε = ∙ ε = |

Energy In Relativistic Events Calculator Input Values |

Rest mass of the particle (m_{0}) kg [Kilogram] |

Velocity of particle (v) m/s [metre per second] |

Speed of light in vacuum (c) m/s [metre per second] |

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ε = m_{0} ∙ c^{3} √*1**/**c*^{2} - v^{2}

This formula derives from the equation of relativistic energy

ε^{2} - p^{2} ∙ c^{2} = m^{2}_{0} ∙ c^{4}

where

p = *m*_{0} ∙ v*/**√***1 - ***v*^{2}*/**c*^{2}

is the relativistic impulse of the given particle.

The following Physics tutorials are provided within the Relativity section of our Free Physics Tutorials. Each Relativity tutorial includes detailed Relativity formula and example of how to calculate and resolve specific Relativity questions and problems. At the end of each Relativity tutorial you will find Relativity revision questions with a hidden answer that reveals when clicked. This allows you to learn about Relativity and test your knowledge of Physics by answering the test questions on Relativity.

- 18.1 - Relativity. Galilean Transformations. Einstein's Postulates and Newton's Laws
- 18.2 - Classical Principle of Relativity
- 18.3 - Space and Time in Einstein Theory of Relativity
- 18.4 - Relativistic Transformation of Velocity and the Relativistic Doppler Effect
- 18.5 - Lorentz Transformations
- 18.6 - Relativistic Dynamics. Mass, Impulse and Energy in Relativity

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