A radioactive substance decays exponentially. A scientist begins with 140 milligrams of a radioactive substance. After 21 hours, 70 mg of the substance remains. How many milligrams will remain after 25 hours? Preview mg

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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.