本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 国际高中通用物理
[单选题]
A radioactive substance with a half-life of 3.0 dzyjcj f*yo*dy 5hntf- 9 pq3(dx.53gk*ew gls01)lkz3 cx0 : 2n tfrbnhb1r2-6auakdays has an initial activity of eb1w0-bf1 2rs utnkn3:c6kh2)dar 0a lzl *gx$0.24 \; Ci$. What is its activity after 6.0 days?
A. $0.12 \; Ci$
B. $0.48 \; Ci$
C. $0.06 \; Ci$
D. none of the given answers
参考答案: C
本题详细解析:
暂无
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