Use the exponential decay model, A = A0ekt, to solve. Round answers to one decimal place. The half-life of thorium-229 is 7340 years. How long will it take for a sample of this substance to decay to 20% of its original amount?

Q: The isotope Hg-197 is used in kidney scans. It has a half-life of 64.128 hours. After that time,…

A: Given – The isotope Hg – 197 is used in kidney scans It has a half life of 64.128 hours . After time…

Q: (a) Find its decay constant, k, within the exponential decay model Q(t) = Qoe-kt, i.e. k> 0 here.…

A: We need to find decay constant and the time when tritium is 25% of it's original size.

Q: Uranium 235 is used as fuel for some nuclear reactors. It has a half-life of 710 million years. How…

A:

Q: Find the half-life of an element which decays by 3.42% each day.

A:

Q: a grave in Egypt proved to have only 58% of the Carbon-14 of living tissue. The half-life of…

A: It is given that,  Seeds found in a grave in Egypt proved to have only 58% of the Carbon-14 of…

Q: Carbon-14 has a half life of 5760 years. Suppose only 70% of the original amount of Carbon-14 in a…

A:

Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.