If it is borne by wind blown dust and small particles, then as fast as the wind, potentially. If it is direct radiation like gamma rays, then this travels at the speed of light.
At the same speed as the wind that is carrying it (if it is airborne). Potentially very fast if its in a hurricane :)
500,0000mph
neutron emission
it depends on the type of radiation alpha ((type of)nuclear radiation) can't travel through it for very long Infra red (heat) can but is absorbed by the particles in the water as it goes
Sure. But the thicker and more dense the solid is, the more radiation is blocked. A nice, heavy blocker of nuclear radiation is lead.
At the same speed as the wind that is carrying it (if it is airborne). Potentially very fast if its in a hurricane :)
Beta radioactivity radiation.
Beta
Nuclear Plants give off radiation, however when some of the nuclear plants in Japan were destroyed, some of the radiation did travel here but the radiation it sent here isn't strong enough to do any damage :)
500,0000mph
neutron emission
it depends on the type of radiation alpha ((type of)nuclear radiation) can't travel through it for very long Infra red (heat) can but is absorbed by the particles in the water as it goes
Sure. But the thicker and more dense the solid is, the more radiation is blocked. A nice, heavy blocker of nuclear radiation is lead.
About 30km/hour
There are no immediate signed of nuclear radiation.
Nuclear weapons emit nuclear radiation, with gamma radiation being the most common and dangerous.
people are planning to store nuclear radiation there.