If a tank holds 4000 gallons of water, which drains from the bottom of the tank in 50 minutes, then Toricelli's Law gives the volume V of water remaining in the tank after t minutes as the following.   Find the rate at which water is draining from the tank after the following amount of time.

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Q: = 4000 1 0 代 50 50

A: Our objective is to calcualate the rate at which the water drains when t=50.

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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.