4. Determine:a. The decay constant of 92238, whose half-life is 4.5 10 year.b. The half-life of a given nucleus which its decay constant is 3.2 10- s1

4. Determine: a. The decay constant of ZSEU whose halflife is 4.5 x 109 year. b. The half-life of a given nucleus which its decay constant is 3.2 x 10'5 s"