Mathematics, 17.06.2020 23:57 jbell735
A swimming pool with a volume of 30,000 liters originally contains water that is 0.01% chlorine (i. e. it contains 0.1 mL of chlorine per liter). Starting at t = 0, city water containing 0.001% chlorine (0.01 mL of chlorine per liter) is pumped into the pool at a rate of 20 liters/min. The pool water flows out at the same rate. Let A(t) represent the amount of chlorine (in mL) in the tank after t minutes. Write a differential equation for the rate at which the amount of chlorine in the pool is changing with respect to time. Then solve the DE to state a model representing the amount of chlorine in the pool at time t.
Be sure to remember to state the initial conditions for this DE clearly.
Rin =
Concentration of chlorine in the tank: c(t) =
Rout =
Differential equation:
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If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32
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A swimming pool with a volume of 30,000 liters originally contains water that is 0.01% chlorine (i....
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