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The MK-I Little Boy had about 100 pounds of 80% enriched uranium and about 4 tons of other stuff needed to make that explode.

The MK-III Fat Man had about 15 pounds of plutonium and about 5 tons of other stuff needed to make that explode.

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Q: What were the two atomic bombs that were dropped on japan made of?
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How strong are the nuclear bombs made today compared with the atomic bombs you dropped on japan?

In very round figures modern fusion bombs have yields in the range from 200 kilotons to 400 kilotons with a small number over 1 megaton. The two fission bombs dropped on Japan were 15 kilotons & 22 kilotons respectively.


When and where were the atomic bombs dropped during World War 2?

If you are referring to "the" bombs, it sounds like you're referring to the two "Atomic" bombs that were dropped on the city of Hiroshima on 06 August 1945, and Nagasaki on 09 August 1945, thus ending WWII. If your referring to the Battle of Iwo Jima (where the US flag was raised), bombs and naval guns pounded that whole island.


What happend with the Manhattan project after the japan bombings?

With the successful development of the atomic bomb.


What president made decision to drop atomic bombs on japan?

Truman


What to cities dropped atomic bombs on japan?

They dropped in the city call Hiroshima and Nagasaki. The bomb for Hiroshima was the big and killed more people than Nagasaki's atomic bomb. I am sure that to dropping atomic bombs in Japan was mistake, even if they wanted to finish the war quickly. America said that to dropping the bomb in japan saved American solders life. But it also made Japanese people killed a lot. and we shouldn't use it forever and ever and never!


Where was the atomic bombs discovered?

it was not discovered it was made it was made in U.S and the Enola Gay dropped the bomb on hiroshema. I think


Who is Japan's most famous monster?

Godzilla is Japan's most famous monster. He was made to represent the U.S. bombs dropped on Nagasaki and Hiroshima during WWll after they dropped bombs and fighter planes at Pearl Harbor.


Which president made the decision to drop atomic bombs on japan?

President Harry Truman


What year was the first nuclear weapon made?

In 1945 in World War II, the United States dropped two atomic bombs on Japan. It took from 1939 until 1945 to develop the bomb.


What caused the massive fires when the us dropped bombs over Tokyo?

Homes in Japan were made out of a paper-like substance that burnt very easy, so the US dropped fire bombs


What is a name of the bomb dropped by America on hiroshima and nagasaki?

Nuclear bombs made from Plutonium and Uranium.


Wa the atomic bomb already made before it was dropped in japan?

Yes the atomic bomb was already made, it was made in the Manhattan Project and secret code so other nation would not know of it, It was later dropped in a desert in New Mexico to test its deadlinest, and then later dropped on Japan TWICE.