Question

what is the energy equivalent of 1kg matter

Answer 1

Answer:

4 million years

Explanation:

E = mc² = 1*9e16 Joules  

Average monthly usage is 500*3.6MJ = 1800 MJ  

9e16 / 1.8e9 = 5e7 months or 4 e6 years, or 4 million years.