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.
The answer is steamboats! The first steamboat came year 1807 and was invented by John Fitch:)
Low tides are also called low water.
Las mareas bajas también se llaman bajo nivel de agua.
Hope this helps!
¡Espero que esto ayude!
Answer: 1,001 Nights, also known as Thousand and one Nights or Arabian Nights.
Explanation:
THE CORRECT ANSWER IS PRIVATE BUS SYSTEM
