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
= 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>
If you need to navigate from the launchpad to to place that would help you get a refresher on what the duplicate command does, go to Help Docs.
<h3>What are Help Docs?</h3>
Help Docs are a utility in your browser that tell you more about tools that you don't have much information about. They tell you about different commands such as the DUPLICATE command and all you need to do is to search for the command and the information will be presented to you.
Community will not help you find out more about the DUPLICATE command directly because it involves talking to others in the community. Tech Support is only helpful if you have a problem with the ACL Analytics tool.
Options for this question are:
- Community
- Tech Support
- Help Docs
Find out more on ACL Analytics at brainly.com/question/14464816
#SPJ1
Answer:
Stimulus Discrimination.
Explanation:
Classical conditioning is one of the Important concept in Psychology and one of the factors is known as Stimulus Discrimination. The term "Stimulus Discrimination" means that if an individual or someone was trained in a particular way(stimulus) and the individual or someone respond very well to that particular way or stimulus BUT that person or individual refuse to respond to similar stimulus.
Yolanda in the question above is afraid of visiting doctors because they make her feel nauseated, however, she does not feel the same way towards Dentist.
Dentist and medical doctors work in the hospital and their work is somehow related so, the stimuli is similar and she responds differently.
The diplomats hand the diplomatic work.