Answer:
0
Explanation:
This is because, even though both ratios are growing, the efficiency of labor ratio grows a little bit more than the population, and that prevents the population to actually make a positive difference and therefore, the output per effective worker cannot start to grow.
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>
Answer:
president
Explanation:
as he signs it to become a constitution
World War II took place from 1939 to 1945 and the following events led up to the United States becoming involved in WWII.
In 1939, the US cancelled its trade agreement with Japan.
The US embargoed (or outlawed the buying or selling) of Japanese iron, steel, and mechanical parts.
Japan sent troops to Indochina to pressure British and Dutch Far East possessions and US, British, and other Western nations reacted by freezing Japanese assets and blocking the buying of Japanese oil.
Japan and the US were in talks to ensure peace, but ideas put forth by the Japanese were considered to be inadequate by the US. Japan was asked by the US to evacuate China but the Japanese refused to, suggesting they would instead be preparing for a war.
The Japanese bombed/attacked British and American holdings on December 7, 1941 (including Pearl Harbor).