How much mass must be converted to energy to release one million kilowatt-hours? A) 3.6 × 10^-6 g B) 40 μg C) 4.0 g D) 3.6 × 10^-12 g E) 40 pg

Question

Quizplus · Accepted Answer

Using Einstein's equation E=mc², where E is energy, m is mass, and c is the speed of light, we can calculate the mass. One million kilowatt-hours is equivalent to 3.6 × 10^12 joules. Solving for m gives approximately 40 micrograms (μg).

How Much Mass Must Be Converted to Energy to Release