Thread: Radioactive Decay

A radioactive substance decays according to the law q(t)=q(sub0)e^(-ct), where q(sub0)=q(0). Find its half life if c=1000. Thanks for the help.

Originally Posted by nystudent2729

A radioactive substance decays according to the law q(t)=q(sub0)e^(-ct), where q(sub0)=q(0). Find its half life if c=1000. Thanks for the help.

there's a formula for this:

to see this, set and solve for t