Answer:
9155 years old
Explanation:
We use the following expression for the decay of a substance:
![N = N_0\,\,e^{-k*t}](https://tex.z-dn.net/?f=N%20%3D%20N_0%5C%2C%5C%2Ce%5E%7B-k%2At%7D)
So we first estimate the value of k knowing that the half-life of the C14 is 5730 years:
![N = N_0\,\,e^{-k*t}\\N_0/2=N_0\,\,e^{-k*5730}\\1/2 = e^{-k*5730}\\ln(1/2)=-k*5730\\k= 0.00012](https://tex.z-dn.net/?f=N%20%3D%20N_0%5C%2C%5C%2Ce%5E%7B-k%2At%7D%5C%5CN_0%2F2%3DN_0%5C%2C%5C%2Ce%5E%7B-k%2A5730%7D%5C%5C1%2F2%20%3D%20e%5E%7B-k%2A5730%7D%5C%5Cln%281%2F2%29%3D-k%2A5730%5C%5Ck%3D%200.00012)
so, now we can estimate the age of the artifact by solving for"t" in the equation:
![1/3=e^{-0.00012*t}\\ln(1/3)= -0.00012*t\\t=9155. 102](https://tex.z-dn.net/?f=1%2F3%3De%5E%7B-0.00012%2At%7D%5C%5Cln%281%2F3%29%3D%20-0.00012%2At%5C%5Ct%3D9155.%20102)
which we can round to 9155 years old.
Search Results<span>By simply wrapping wire that has an electrical current running through it around a nail, you can make an electromagnet. When the electric current moves through a wire, it makes a magnetic field. ... You can make a temporary magnet by stroking apiece of iron or steel (such as a needle) along with a permanent magnet.
Hope This Helps!</span>
Hey there!
<span>
An object's velocity can be described by its speed and acceleration.
This statement is true
Hope this helps
Have a great day (:
</span>
Answer:
Explanation:
If you look closely, force 1 does not reach 0.2 until 0.4 force 2 reaches 0.2 at about 0.2 - hope that made sense :P