If a 1-kg mass is completely converted into energy,the amount of energy released would be A)0.333 J. B)1 J. C)3 × 10⁸ J. D)9 × 10¹⁶ J. E)none of the above.

Question

Quizplus · Accepted Answer

According to Einstein's famous equation E=mc², the amount of energy released by completely converting a mass of 1 kg into energy is E=1 kg x c² where c is the speed of light. Plugging in the value of c gives E=1 kg x (3 x 10⁸ m/s)² = 9 x 10¹⁶ J. This matches choice D.

If a 1-Kg Mass Is Completely Converted into Energy,the Amount