Register
I found a rock that contains 1g of radioactive Radium (half-life = 1600 years). I measure that 15g is no longer radioactive. How old is my rock?
87.2k views
5 votes
I found a rock that contains 1g of radioactive Radium (half-life = 1600 years). I measure that 15g is no longer radioactive. How old is my rock?

User Newalp
by
4.1k points

1 Answer

3 votes

Answer:

The rock now is dead

Explanation:

Because if 1g was half life time then 2g are the hole life of the rock

The age of the rock is of 15*1600=24000

User Daniel Pittman
by
4.7k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.7m questions

6.0m answers

Other Questions

I need to simplify this expression.
Which property is shown in the problem below? -8(x-3y-9) = -8x+24y+72 A the associative property B the commutative property C the distributive property D the division property ASAP
What is the domain and range?
What does translation means in math? I am taking a quiz on this right now, I need an answer ASAP!!!!!!
If in circle A is 60°, what is m∠BDC? A. 60 B. 45 C. 30 D. 25
Link Copied!