Solve the problem.
-In the formula , A is the amount of radioactive material remaining from an initial amount I at a given time t, and k is a negative constant determined by the nature of the material. A certain radioactive isotope
Decays at a rate of 0.275% annually. Determine the half-life of this isotope, to the nearest year.
A) 109 yr
B) 252 yr
C) 3 yr
D) 182 yr

Question

Solve the problem.
-In the formula  , A is the amount of radioactive material remaining from an initial amount I at a given time t, and k is a negative constant determined by the nature of the material. A certain radioactive isotope
Decays at a rate of 0.275% annually. Determine the half-life of this isotope, to the nearest year.
A) 109 yr 
B) 252 yr 
C) 3 yr 
D) 182 yr

Quizplus · Accepted Answer

The Answer of Solve the problem.
-In the formula  , A is the amount of radioactive material remaining from an initial amount I at a given time t, and k is a negative constant determined by the nature of the material. A certain radioactive isotope
Decays at a rate of 0.275% annually. Determine the half-life of this isotope, to the nearest year.
A) 109 yr 
B) 252 yr 
C) 3 yr 
D) 182 yr

Solve the Problem. -In the Formula , a Is the Amount of the Amount