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>
Religious affiliation differ in north and south America because :
there are more christians in South America than north America
Mostly because most of the southern America were conquered by the Spanish Kingdom
hope this helps
President Richard Nixon proposed the development of the Environmental Protection Agency
The correct answer is letter C
Explanation: In this case it is extremely normal for him to feel that way about his recent trauma, and the most appropriate thing is to seek help so that this trauma can be treated in a way that can be resolved. Regardless of the profession, all people suffer psychologically, so when this happens, the most recommended thing is to look for a qualified professional for this, so that they can help you.
Answer:
Self actualization needs
Explanation:
Self actualization needs is at the peak of the Maslow's Hierarchy of Needs, i.e. the highest level of psychological development. At this point, all mental needs and basic needs have been fulfilled and then there is a desire for self fulfillment and enriching experiences. There is a drive to fully realize one's potential and become all one is capable of becoming.
At this stage people tend to be natural, spontaneous, comfortable with solitude, socially compassionate etc.
