The cost of mailing a first-class letter within Canada went up to 85 cents today â a 35 per cent jump from the 63 cents it cost yesterday.But the 85-cent rate is only available if stamps are purchased in a pack. If you want to buy just one stamp, it will cost $1.he cost of mailing a first-class letter within Canada went up to 85 cents today â a 35 per cent jump from the 63 cents it cost yesterday. But the 85-cent rate is only available if stamps are purchased in a pack.
uranium-235 atom absorbs a bombarding neutron, causing its nucleus to split apart into two atoms of lighter mass. At the same time, the fission reaction releases thermal and radiant energy, as well as releasing more neutrons. The newly released neutrons go on to bombard other uranium atoms, and the process repeats itself over and over.
Nuclear power is generated from the Uranium and Plutonium fission. The Uranium in nature consists of two isotopes as U-235 and U-238. U-235 is used for nuclear power generation and is unstable atom decay to give away some energized particles. The emitted particles are known to have drastic impact on the human body. The nuclear waste when disposed into the soil and water remain emitting radioactive rays for about few years.