The half-life of a radioactive substance is 27.7 years. a. Find the exponential decay model for this substance. b. How long will it take a sample of 400 grams to decay to 300 grams? c. How much of the

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question

asked Dec 20, 2022 3.1k views

2 votes

The half-life of a radioactive substance is 27.7 years.

a. Find the exponential decay model for this substance.
b. How long will it take a sample of 400 grams to decay to 300 grams?
c. How much of the sample of 400 grams will remain after 20 years?

Mathematics
college

Reyno asked

by Reyno

3.6k points

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

5 votes

Answer:

N(t) = N₀·0.5^(t/27.7)

11.5 years

242.5 grams

Explanation:

The half-life of a radioactive substance is 27.7 years. a. Find the exponential decay-example-1

Luca Bezerra answered Dec 25, 2022

by Luca Bezerra

4.2k points

0 Comments

Please log in or register to add a comment.

Ask a Question

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.5m questions

5.7m answers

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

Other Questions