radioactive potassium
Not what you're looking for?
It takes 1.31 billion years for radioactive potassium -40 to decrease to half its original size.
a) Construct a function to describe the decay of potassium -40
b) Approximately what amount of the original potassium -40 would be left after 4 billion years?
Purchase this Solution
Solution Summary
This posting constructs a function to describe the decay of potassium.
Purchase this Solution
Free BrainMass Quizzes
Intro to the Physics Waves
Some short-answer questions involving the basic vocabulary of string, sound, and water waves.
Introduction to Nanotechnology/Nanomaterials
This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.
Variables in Science Experiments
How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.
The Moon
Test your knowledge of moon phases and movement.
Basic Physics
This quiz will test your knowledge about basic Physics.