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.
Answer:
- Omaha is 0% more densely populated than Las Vegas.
- People are 4.2% more likely to be married in Omaha.
- The Median Age is 3.1 years younger in Omaha.
Explanation:
Im not good in Social Studies. Actually that's my weakness. This is what I found in the net.
Answer:
d
Explanation:
how much energy is coming from the star per square meter per second, as measured on Earth. The apparent brightness of a star is described by a magnitude that is a positive number for most stars, but can be a negative number for, say, Venus.
sedimentary is a example, indious is heat sedimentary is like layers and fossils and metamorphic is pressure
<span>Cell phones is, IPod is, Blue Jeans is. Of course, sandals is not a sign of globalisation. As the proverb goes, "Necessity is the mother of invention." In all continents, there has always been a need to have something on the foot. When the need for something becomes imperative, you are forced to find ways of getting or achieving it, but then the need for a sandals doesn't creates a kind of interaction with people, states, or countries on cultural, religious, political, or ideologically grounds. Sandals doesn't make the human race one big family on any grounds, but then take Cell phone. Cell phones and iPods have in no small way broken the obstacles and challenges the world faces. I can communicate with Admin in secs even though he lives thousands of miles away. On the other hand, a blue Jeans is, too, because many people in different countries have embraced a foreign culture, or mode of dressing of europeans and are sharing a similar culture.</span>
