In the treatment of prostate cancer, radioactive implants are often used. The implants are left in the patient and never removed. The amount of energy that is a transmitted to the body from the implant is measured in rem units and is given by E= {Poekl dt, where k is the decay constant for the radioactive material, a is the 0 number of years since the implant, and P0 is the initial rate at which energy is transmitted. Suppose that the treatment uses iodine-125, which has a half-life of 60.1 days. Answer parts a) through c) below. a) Find the decay rate, k, of iodine-125. k = (Round to ve decimal places as needed.)