<span>You would find information on policies, responsibilities, and procedures for the army safety program in Ar 385-10Department of the Army Pamphlet 385-10 Army Safety Program Dated 23.</span>
Answer:
The rock is 3.75 billion years ago.
Explanation:
Given that:
Half life = 1.25 billion years
1 billion years = 10⁹ years
So,
Half life = 1.25 × 10⁹ years
Where, k is rate constant
So,
The rate constant, k = 5.5452 × 10⁻¹⁰ years⁻¹
Initial amount [A₀] = 80 micrograms
Final amount ![[A_t]](https://tex.z-dn.net/?f=%5BA_t%5D)
= 10 micrograms
Using integrated rate law for first order kinetics as:
![[A_t]=[A_0]e^{-kt}](https://tex.z-dn.net/?f=%5BA_t%5D%3D%5BA_0%5De%5E%7B-kt%7D)
So,
So,
<u>The rock is 3.75 billion years ago.</u>
Answer:
C. Look at the child, and do not look or point at the object you are referring to.
Explanation:
The development of language skills in early childhood is fundamental for the cognitive development and social insertion of the child. Thus, parents should use incentive approaches that lead the child to communicate. Successful approaches include encouraging the child to speak different phrases to increase their vocabulary, actively talking to the child, and showing objects to begin identifying and making associations.
