close
標題:
Physics Question
Samples of two radioactive nuclides,A ande B,each have equal activity Ao at time t=0.A has a half-life of 9 years and B has a half-life of 15 years.The samples are mixed together. What will be the total activity of the mixture at t=45 years
最佳解答:
Consider A: No. of half-lives = 45/9 = 5 Activity = Ao(1/2)5 = 0.03125Ao Consider B: No. of half-lives = 45/15 = 3 Activity = Ao(1/2)3 = 0.125Ao Total activity = 0.03125Ao + 0.125Ao = 0.15625Ao
其他解答:
Physics Question
此文章來自奇摩知識+如有不便請留言告知
發問:Samples of two radioactive nuclides,A ande B,each have equal activity Ao at time t=0.A has a half-life of 9 years and B has a half-life of 15 years.The samples are mixed together. What will be the total activity of the mixture at t=45 years
最佳解答:
Consider A: No. of half-lives = 45/9 = 5 Activity = Ao(1/2)5 = 0.03125Ao Consider B: No. of half-lives = 45/15 = 3 Activity = Ao(1/2)3 = 0.125Ao Total activity = 0.03125Ao + 0.125Ao = 0.15625Ao
其他解答:
文章標籤
全站熱搜
留言列表
