本题目来源于试卷: Physics Unit26: Special Theory of Relativity，类别为 Generic Physics
[单选题]
The atomic bomb that was dropplyt8)z/gbwmt( /jpk ixe ;e1vl 26;hjed on Nagasaki in 1945 kille69tf+l k4scqjyj c yft.6l1m1d 140,000 people, helping to end Wojctl.qfsf 1cl jym +64t6ky91 rld 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 = $4.3 \times 10^{12} \; J$) Incidentally, modern H-bombs have energy yields 1000 times as much!
A. $1 \; g$
B. $10 \; g$
C. $100 \; g$
D. $1 \; kg$
参考答案: A
本题详细解析:
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Post time 2024-1-14 16:03:04