The Atomic Bomb That Was Dropped on Nagasaki in 1945

question 51

Multiple Choice

The atomic bomb that was dropped on Nagasaki in 1945 killed 140,000 people, helping to end World War II on the next day. It released energy equivalent to that of 20,000 tons of TNT explosive. How much mass was converted to energy when this took place? (1000 tons of TNT = 4.3 × 10¹² J) Incidentally, modern H-bombs have energy yields 1000 times as much!

• A)1 g
• B)10 g
• C)100 g
• D)1 kg
• E)10 kg

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