The weight of a nuclear bomb can vary significantly depending on its size, design, and purpose. Some examples of the weights of different types of nuclear bombs:

* Little Boy: The Little Boy bomb, used in the atomic bombing of Hiroshima, Japan, weighed approximately 4 tons (3.6 metric tons).

* Fat Man: The Fat Man bomb, used in the atomic bombing of Nagasaki, Japan, weighed approximately 10 tons (9 metric tons).

* W87: The W87 is a thermonuclear warhead used by the United States. It weighs approximately 360 kilograms (800 pounds).

* B61: The B61 is a thermonuclear bomb used by the United States. It has a variable yield and can weigh anywhere from 300 to 500 kilograms (660 to 1,100 pounds).

Length

The length of a nuclear bomb can also vary depending on its design. Some examples of the lengths of different types of nuclear bombs:

* Little Boy: The Little Boy bomb was approximately 10 feet (3 meters) long.

* Fat Man: The Fat Man bomb was approximately 13 feet (4 meters) long.

* W87: The W87 warhead is approximately 1.4 meters (4.5 feet) long.

* B61: The B61 bomb is approximately 3.6 meters (12 feet) long.