Es lo mismo una teoria sociologica que un paradigma?

Suppose you find a rock that contains 10 micrograms of radioactive potassium-40, which has a half-life of 1.25 billion years. By

attashe74 [19]

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

$t_{1/2}=\frac {ln\ 2}{k}$

Where, k is rate constant

So,

$k=\frac {ln\ 2}{t_{1/2}}$

$k=\frac {ln\ 2}{1.25\times 10^9}\ year^{-1}$

The rate constant, k = 5.5452 × 10⁻¹⁰ years⁻¹

Initial amount [A₀] = 80 micrograms

Final amount $[A_t]$ = 10 micrograms

Using integrated rate law for first order kinetics as:

$[A_t]=[A_0]e^{-kt}$

So,

$10=80\times e^{-5.5452\times 10^{-10}\times t}$

$80e^{-5.5452\times \:10^{-10}x}=10$

$\frac{80e^{-5.5452\times \:10^{-10}x}}{80}=\frac{10}{80}$

$\ln \left(e^{-5.5452\times \:10^{-10}x}\right)=\ln \left(\frac{1}{8}\right)$

$x=\frac{10^{10}\times \:3\ln \left(2\right)}{5.5452}=3.75\times 10^9$

So,

<u>The rock is 3.75 billion years ago.</u>

8 0

3 years ago

Why were so many important battles in the War of 1812 fought on or near water? A. The main issue of the war was control of port

Hitman42 [59]

C. Is the correct answer :)

5 0

3 years ago

Read 2 more answers

When a plant dies, sometimes the remains can be preserved in ________.

salantis [7]

Answer:a vase

Explanation:

6 0

2 years ago

List three things through which Solomon sought happiness. What can Christians learn from the example of Solomon's search for hap

klio [65]

Answer:

<h3>Knowledge, wealth and reputation.</h3>

Explanation:

Three things through which Solomon sought happiness were <u>knowledge, wealth and reputation.</u>

King Solomon in an attempt to find happiness on this earth tried many experiences. However, all of them <u>proved to be futile and adequate as compared to God's love and blessings.</u>

Christians can learn from king Solomon's experiences that even the most powerful and richest man on earth failed to find happiness under the sun/on this earth. It is only through God's presence and love that one can achieve truest happiness.

5 0

3 years ago

The first stop for a new bill in either legislative house is a(n) _____.

vitfil [10]

The first stop for a new bill in either legislative house is the first reading

<h3>What is the Legislature?</h3>

This refers to the arm of government that is responsible for the creation of laws and also has veto power.

Hence, we can see that in the house of the legislature, the lawmakers would have to go through various stages in order to pass a new bill and the first stage is known as the first reading stage.

Read more about house of the legislature here:

brainly.com/question/809346

#SPJ11

6 0

1 year ago