E = mc2 in the science of physics is a formula that is known good and important, which explains the value of equality between the energy (E) and mass (m), which is directly through the rate constant light square in the vacuum cleaner (c 2)
E=mc²
of which:
* E = energy (J)
* M = mass (kg)
* C = speed of light (m.s-1)
The c 2 value 89.88 PJ / kg = Mt 21:48 TNT per kg = 149.3 PJ / u = 931.5 MeV / u.
If the energy is in the equation above is the silent energy, the mass is also related to mass or mass invarian silent.
History and consequences
Albert Einstein down this formula is based on his researched in 1905 on the behavior of objects that move with the rate approaching the rate light. Conclusion famous ditariknya of this observation is that a mass object is actually a measure of the energy of the womb. Instead, equality is a hint that all the energy that exists in a closed system still affects the mass of the system.
According to this equation, the maximum energy that can be obtained "from an object to do is work on the mass of an object multiplied quadratic rate light.
This formula is also used to measure the amount of energy produced in nuclear reactions. Isotope mass change before and after the nuclear reaction considered. Where the amount of mass lost after the nuclear reaction (Δm) multiplied by the square speed of light, the result is the same as the energy released in nuclear reactions are.
Saturday, January 31, 2009
E=mc² (Relativity Theory)
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