Math Problem Statement

Strontium 90 is a radioactive material that decays according to the function

A(t)=A0e^−0.0244t, where A0 is the initial amount present and A is the amount present at time t (in years). Assume that a scientist has a sample of 400 grams of strontium-90.

a) the decay rate of strontium-90 is __%

b)approximately ___ grams of strontium 90 is left after 10 years

c) Only 100 grams of strontium-90 will be left in about ___ years

d)The half-life of strontium-90 is approximately ___ years 

round final answers to the nearest tenth as needed 

(no steps just answer)

Solution

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Exponential Decay
Radioactive Decay

Formulas

A(t) = A0 * e^(-kt)

Theorems

-

Suitable Grade Level

Advanced High School or College