Calcolatore Equivalenza Massa-Energia
Calcola l'energia equivalente a una massa con la formula E=mc² di Einstein.
Energia
89,880,040,000,000,000.0000 J
Energy vs Mass
Formula
Mass-Energy Equivalence
Einstein showed that mass and energy are interchangeable, related by the speed of light squared.
Formula
E = mc^2
One kilogram of matter, if fully converted to energy, yields about 9 x 10^16 joules, roughly the energy of a 21-megaton nuclear weapon.
Esempio Risolto
Energy equivalent of 1 kg.
- 01E = mc^2
- 02E = 1 * (2.998e8)^2
- 03E = 8.988e16 J
- 04E = 2.497e10 kWh = 25 billion kWh
Domande Frequenti
Can mass really be converted entirely to energy?
Yes, in matter-antimatter annihilation. An electron meeting a positron converts 100% of their mass to gamma-ray photons. Nuclear reactions convert less than 1%.
How much energy is in an electron's mass?
The electron rest mass (9.109e-31 kg) corresponds to 0.511 MeV, a key value in particle physics.
Is mass created from energy possible?
Yes. Pair production creates a particle-antiparticle pair from a high-energy photon (near a nucleus to conserve momentum).
Impara