Assignment:
Question 1. Three radioactive sources each have activities of 1.0 micro Curies (Ci) at t=0. Their half lives are 1 sec, 1 hour and 1 day respectively
a.) How many radioactive nuclei are present at each source when t=0
b.) How many nuclei of each source decay between t=0 and t=1sec
c.) How many nuclei of each source decay between t=0 and t=1hour