Set this up as
10 = 40 (1/2)t/28
and solve for t in years.
10/40 = (1/2)t/28
log(0.25) = (t/28) log(0.5)
t = 28 log(0.25) / log(0.5) years = 56 years
Test the answer:
56 years = 2(28 years) = 2 half-lives, so the remaining amount should be 1/2 of 1/2 of the initial amount, i.e. 1/4 of the initial amount, and 10 mg = 1/4 of 40 mg.
<u>Answer:</u>
Fault rupturing by the earthquake is largely governed by the Elastic rebound theory. In geology, the elastic rebound theory is an explanation of how energy is released during an earthquake. It explains that as rocks on opposite side of the fault are subjected to some force and shift.
They gather energy and deform slowly unless their internal strength increases causing a sudden movement occurs along the fault. This results in the releasing of the accumulated energy and rocks move back to their original but unreformed shape.
Answer:
Divergent boundaries such as the mid-oceanic ridge system.
Explanation:
Divergent boundaries occur when plate boundaries pull away from each other. Molten rock or magma rise from the gap between the two plates, rising up to the sea floor where it cools down to form new crust. It is the mid-ocean ridges where you see the most magma produced and there has not been any other tectonic event or area that could match its procution since the Precambrian period.
Answer:
There is a large number of volcanoes in the Pacific Ocean which continuously erupts when these volcanoes erupt they cause many earthquake in Ocean . it is dangerous because it can harm and destroy many ships and areas around that volcano
Explanation:
Neap tides are formed during the moon's last quarter phase.
Neal tides is the result difference of high and low tides. They are really weak tides, and they occur when the sun and the moons gravity forces, along with the Earth, are perpendicular to each other.
