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Little Boy was the nuclear bomb detonated over Hiroshima. It used uranium and had an explosive blast equivalent to 12,500 tons of TNT. A 1 megaton hydrogen bomb, hypothetically detonated on the earth's surface, has about 80 times the blast power of that 1945 explosion.
Considering the tonnage of a bomb to be contant, The blast radius varies dependent on whether it is a ground burst or an airburst. Further, the height of the airburst above ground affects the radius too. At a height of 1900 feet above ground, Little Boy produced a blast radius of 1 mile; an area of some 4.7 square miles.
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What accounts for the fact that the radius of f is smaller than the radius of li?
Increasing positive nuclear charge
How is a blast radius calculated?
See the book The Effects of Nuclear Weapons for equations. My copy came with a circular slide rule that calculates that for optimal altitude airburst and surface burst over a yield range of 1 KTon to 10 MTon. It also calculates many other effects.
What is the radius of a head and how do you measure it?
It depends on how big your head is.
How do you find the radius of big cylinder given radius of small cylinder and big cylinder is 4 times larger than the small cylinder?
The answer will depend on whether the larger cylinder is 4 times larger in terms of radius, cross-sectional area, or volume. If radius, multiply the smaller radius by 4. If cross-sectional area, multiply the smaller radius by 2. If volume, you do not have enough information.
How big is a circle if it is 1200 inches in diameter?
It depends on what you mean by "big". It has a radius of 600 inches.
