How many joules of energy would be released if a U.S. penny (2.5 *10^-3 kg) were converted entirely to energy? The speed of light is 3 *10⁸ m/s.

Question

Quizplus · Accepted Answer

The energy released from converting mass to energy can be calculated using Einstein's equation, E=mc^2, where m is the mass in kilograms and c is the speed of light in meters per second. Given the mass of the penny as 2.5×10^-3 kg and the speed of light as 3×10^8 m/s, the calculation is E = (2.5×10^-3 kg) × (3×10^8 m/s)^2 = 2.25×10^14 joules.

How Many Joules of Energy Would Be Released If a U.S