Is nuclear physics related to chemistry
?

Nuclear physics is related to chemistry in some way but it is rightly placed under the branch of physics.

Nuclear physics is the field of physics in which atomic nuclei are studied. As in chemistry reactions are studied, nuclear physics also studies the reactions of the atomic nuclei. Hence, in this way, these two fields might co-relate but there are more differences than similarities in the field of chemistry and nuclear physics.

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

"a.) well–developed vascular system."