So simply it to 120m/m for 120 minutes. So then you multiply 120x120 and that equals 14,400
Answer:
very hard others will answer it
Explanation:
hard
The type of radiation that can penetrate through paper, but not through wood is called beta rays. Beta rays can penetrate paper and air, but a thin piece of alimony can stop it. Gamma can cut through anything except lead and many inches of concrete. Alpha can be stopped by paper and not penetrated. The correct answer is B.