I think it’s 5.0 X 10 8Hz
Answer:
10000 Bq / 625 Pq = 16
Radioactivity has decreased by a factor of 16
2^4 = 16
So the sample has gone thru 4 half-lives
24 da / 4 = 6 da
6 da is the half-life
as we know that velocity= displacement/change in time
hence velocity here is= 11-3/12-0
=8/12
=2/3
=0.667m/s
hopefully i am right
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I think the correct answer from the choices listed above is option B. The <span>andes mountains in south america was not created by subduction. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
