The most powerful nuclear weapon ever detonated was the Russian "Tsar Bomba" in 1961. (50 Megatons) It had a yield of 100 megatons of TNT, but was reduced to avoid fallout. People 100 km away would have gotten third degree burns from the heat of the explosion.
It is difficult to determine the exact number of nuclear bombs it would take to kill everyone in the world, as many factors such as location and size of the bombs would come into play. However, it is estimated that a few hundred strategically placed nuclear bombs could have catastrophic global consequences.
Surface bursts create craters, lots of fallout, and damage/destroy fortified underground structures; but the total area of surface damage is less than that of air bursts of similar yield because the blast wave is partially contained.
It is difficult to provide an exact number, but experts estimate that as few as 300 nuclear warheads detonated in key cities could result in worldwide devastation, as the resulting nuclear winter would lead to widespread famine and loss of life. Efforts to reduce nuclear stockpiles and promote disarmament are crucial to prevent such a catastrophic scenario.
The minimum velocity of the missile would depend on the time it takes for the missile to reach the target. If the missile travels 100 meters in 1 second, then the minimum velocity would be 100 m/s.
To the planet very little. To life an awful lot.
Wouldnt reach, dont have powerful enough rockets/good enough sea transport
North Korea would first launch a Nuclear Missile at South Korea, due to there past arguments. This would prompt the U.S to launch a missile, causing a nuclear war between communists and democracies.
Bad water pollution with radionuclides. Fishing might have to be banned. Possibly radioactive rain and snow, depending on how deep or shallow they exploded.
america
It depends on the size of the Nuclear device, anywhere from 5 square miles and up
I think its MOAB(Mother Of All Bombs)........ The most destructive missile would be the peace maker missile carried 12 nuclear warheads.
You likely mean to limitation and disarmament of nuclear weapons. This would be the Nuclear Non-Proliferation Treaty (NPT).
A nuclear war, which would result in a nuclear winter and the end of most if not all of life on Earth.
No one has actually tried this before, and no physics engine has ever managed to imitate effects of such great force, so therefore it is quite hard to answer this question.
Agni-5 7500km & with nuclear warhead it would be 5500 km
A nuclear bomb, probably very little but it would depend strongly on yield and location it detonated; as well as many other variables.However a war would probably involve thousands of bombs... not just one.