2007-04-20 06:41:17 · 3 answers · asked by shahid h 1 in Science & Mathematics ➔ Physics
destroyed how? Just vaporized? Or broken into pieces?
If it were possible for the helium atom to just vanish (which it isn't), there would have to be energy released equal to its full rest mass energy: its mass times the speed of light (300 million m/s)^2
If it breaks into pieces, you calculate the mass defect (mass of atom - mass of pieces) and multiply that by c^2. If the pieces are heavier, then you have to input that much energy to make the reaction happen.
2007-04-20 06:45:45 · answer #1 · answered by Anonymous · 0⤊ 0⤋
E=mc^2
2007-04-20 13:45:00 · answer #2 · answered by bubsir 4 · 0⤊ 0⤋
E = m.c^2 is the equation. Just substitute and get the answer. c is 3 X 10 ^ 10 cm/sec approx.
2007-04-20 13:52:51 · answer #3 · answered by Swamy 7 · 0⤊ 0⤋