9 × 10^13 J
9 x 10^12 J
2.25 x 10 15j
4.5 × 1015 J
2.25 times 10 to the 15
2.25 x 10 15j
4.5 * 10^15 J
2.25 x 10 15j
4.5 × 1015 J
2.25 times 10 to the 15
9 x 10^12 J
2.25 x 10 15j
1..35 x 10^15
4.5 × 1015 J
If all the mass was last as energy the Einstein's formula (Energy = Mass * The velocity of light in a vacuum squared) will give you the energy. However in normal radioactive decay mass is also lost from the sample as alpha particle and beta particles, not energy.
Radioactive material is warmer than the surrounding material because radioactive material is constantly breaking down. When material breaks down, that means that energy is constantly getting released. When energy is released, it produces warmth.
The sample must contain radioactive elements.
4.5 * 10^15 J
The length of time required for half of a sample of radioactive material to decay