The explosion would probably disrupt the tornado. However, the effects of the blast and fallout would likely be worse than anything the tornado could do. Even then, the parent thunderstorm may still go on to produce another tornado.
An atomic bomb has more destructive potential, but a large, long-lived tornado would probably release more energy than a small nuclear weapon.
If two tornadoes come together they merge into one tornado.
That depends on the tornado. In a single vortex tornado the most damaging part would be the edge of the tornado's core, analogous to the eye wall of a hurricane. In a multiple vortex tornado, the most damaging part would be the subvotices that orbit within the main circulation of the tornado.
No, adding high heat in the area of a tornado, or even directly into a tornado, would not stop it.
A tornado with the fastest winds would be rated EF5.
For a massive wedge tornado, anything short of a nuclear bomb would probably not do much. A nuclear bomb would probably disrupt it, but at the same time would cause far more damage than the tornado itself could.
America exploded a lot of atomic bombs the ones they dropped on Japan were to win the war and to see what would happen if they were dropped on real live people.
you would die!
We would all die
it can stop the tornado
There is no such thing as an F12 tornado. Fujita, the person who created the rating scale, put wind speed estimates for ratings up to F12 for purely mathematical reasons. He did not believe that such a tornado was possible. If such a tornado were to occur, the supersonic winds would cause utter devastation that would resemble the effects of the shockwave of an atomic bomb.
You would probally die
it is generally impossible to out run a tornado but if you do hooray for you
Everyone would be dead
It will be a waterspourt
If the sun exploded it would not give us oxygen; it would simply vaporize Earth.
If our Sun exploded, it would destroy most of the planets, and kill us all. Fortunately, this does not seem likely.