1. Which is a sum of the rest energy and the kinetic energy. 2. The rest energy of the hot water is greater than the cold water. 3. We see that the rest energy is an independent invariant. 4. This is the sum of the rest energies of all the particles that compose earth. 5. In the rest frame of an object, it has a rest energy and zero momentum. 6. Invariant mass or rest energy is important to understand. 7. According to special relativity, the rest energy of an object is directly proportional to its mass. 8. :The second equations says that kinetic energy is total energy minus rest energy , which is quite intuitive. 9. For the same reason, it is possible to subtract the rest energy from the total energy in relativity. 10. When an electron moves it has more energy added to this rest energy which also means added mass.
