OhMrsDarcy
New member
- Joined
- Oct 5, 2006
- Messages
- 9
The problem states:
Given a sample of radioactive substance, if half of the material takes 10 years to decay into a non-radioactive material, what is the rate of decay? Given 1 ton of the material, how long until only 0.01% remains?
Our book gives the formula:
. . .A = A0(1/2)^t/h
where:
. . .A: amount at time t
. . .A0: amount at time t=0
. . .h: half life
I'm probably wrong, but the part about rate i'm guessing that it's 1/20th of the sample per year, because in 20 years it's all decayed. I've got no clue on the rest of it.
Given a sample of radioactive substance, if half of the material takes 10 years to decay into a non-radioactive material, what is the rate of decay? Given 1 ton of the material, how long until only 0.01% remains?
Our book gives the formula:
. . .A = A0(1/2)^t/h
where:
. . .A: amount at time t
. . .A0: amount at time t=0
. . .h: half life
I'm probably wrong, but the part about rate i'm guessing that it's 1/20th of the sample per year, because in 20 years it's all decayed. I've got no clue on the rest of it.