Answer:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Explanation:
The amount of the sample of the radioactive isotope decays exponentially in time, the amount of mass of the sample as a function of time (
), in grams, is described below:
(1)
Where:
- Initial mass, in grams.
- Time, in years.
- Time constant, in years.
The time constant can be found from half life (
), in years, described in statement:
(2)
If we know that 
, 
and 
, then the current amount of the sample is:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Population. Hope this helps :D
Indian history begins with the birth of the Indus Valley Civilization and the coming of the Aryans. These two phases are usually described as the pre-Vedic and Vedic age. Hinduism arose in the Vedic period.
Sure hope this helps you
Answer:
Metal that has not yet been refined.
Explanation:
The mining companies are companies that are involved in the extraction of natural resources from the crust. They can operate on land or in water. The extraction of natural resources involves numerous things, such as oil, natural gas, and metals.
When it comes to the extraction of metals, the term that is used is ore. Ore refers to the metal that has still not been refined, or rather it is in its natural form and is not useable without manufacturing it. The extraction of ore is among the biggest businesses in the world, and many countries in the world have it as the number one or one of the top economic contributors.
