9x10^16 J
2.25 times 10 to the 15
4.5 × 1015 J
9 × 10^13 J
The energy released from a mass loss can be calculated using Einstein's equation, (E=mc^2). For a mass loss of 0.025 kg, the energy released would be (E = 0.025 , \text{kg} \times (3 \times 10^8 , \text{m/s})^2), which equals approximately 2.25 x 10^15 joules. This significant amount of energy illustrates the power of mass-energy conversion in radioactive decay.
The energy released through radioactive decay can be calculated using Einstein's famous equation E=mc^2, where E is the energy, m is the mass lost, and c is the speed of light. For 1 kg of mass lost, the energy released would be about 9 x 10^16 joules.
4.14¹ ^ 15 J
2.25 times 10 to the 15
4.5 × 1015 J
9 x 10^12 J
It is the difference between sand running out of an hour glass and determining what time it is by how much sand is left. Radioactive decay happens at a steady rate. If you can determine how much of that radioactive isotope ought to have been in a sample at the start and you can measure how much is left, you can tell how much time has passed.
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.
1..35 x 10^15
It is the difference between sand running out of an hour glass and determining what time it is by how much sand is left. Radioactive decay happens at a steady rate. If you can determine how much of that radioactive isotope ought to have been in a sample at the start and you can measure how much is left, you can tell how much time has passed.
9 × 10^13 J
not much, the main nuclear reaction happening in the sun is fusion not decay. the sun is composed almost entirely of hydrogen, deuterium, and helium; all of which are stable and do not decay.
The energy released from a mass loss can be calculated using Einstein's equation, (E=mc^2). For a mass loss of 0.025 kg, the energy released would be (E = 0.025 , \text{kg} \times (3 \times 10^8 , \text{m/s})^2), which equals approximately 2.25 x 10^15 joules. This significant amount of energy illustrates the power of mass-energy conversion in radioactive decay.
Pretty much for the same reason that matter itself never truly "disappears". It can decay and subside at a measurable rate, but like anything else, it will always remain in some form; it's just a matter of how much, and where.