Iodine 131 is a radioactive material that decays according to the function A(t)=A0e-0.087(t) where A0 is the initial amount present, and A is the amount present at time (in days) Assume that a scientist has a sample of 200 grams of iodine 131. What is the decay rate of iodine 131? How much iodine 132 is left after 8 days? When will 70 grams of iodine 131 be left? What is the half-life of iodine 131?

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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.