A swimming pool whose volume is 10,000 gal contains water that is 0.02% chlorine. Starting at t=0, city water containing 0.002% chlorineis pumped into the pool at a rate of 4 gal/min. The pool water flows out at the same rate. What is the percentage of chlorine in the pool after1 hour? When will the pool water be 0.004% chlorine?-helpWhat is the percentage of chlorine in the pool after 1 hour?After 1 hour the pool will be % chlorine.(Round to four decimal placesas needed.)

Given that the volume of the pool is 10000 gal that is 0.02% chlorine. Initially , water containing…

Answered: A swimming pool whose volume is 10,000…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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The average cupcake temperature at a bakery is 75 degrees celsius. You buy a cupcake, and after 1 minute its temperature is at 65 degrees celsius. The temperature outside in the city is 16 degrees celsius. Let's assume that this cupcake follows the law of cooling, what is the value of the constant?
Answer in a given-required format
Please solve using differen
A certain amount of an indissoluble substance containing 2 kg of salt in its pores is subjected to the action of 30 liters of water. After 5 min, 1 kg of salt dissolves. Within how long will 99% of the initial amount of salt dissolve? The rate of dissolution is proportional to the amount of salt that does not dissolve and to the difference between the concentration at the given instant and the concentration and the concentration of the saturated solution (1 kg for 3 litres). Give the result in minutes. The Answer should be: 10.47
Please provide5 a step by step solution for this problem thanks in advance
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Drinking water is treated with fluoride before it is made available to the public. The ideal level is 0.7 ppm. A 20,000 gallon mixing tank is half full and contains 2 lb of fluoride. Fresh water enters from the lake at 2 gallons per minute. If the tank is dis- charged at 1 gallon per minute, how many pounds of fluoride is in the tank the moment it is full? Is it safe to drink using the conversion 1 lb/gal (US) = 119826 ppm?
At noon there were 500 litres of clean water in an outside swimming pool. At 1 pm it starts to rain, and the acid rain is pouring into the pool at the rate of 5 litres per hour. The concentration of the acid is the rain is constant but unknown. The water in the pool is mixed well and drained at the rate of 5 litres per hour. After 100 minutes there are 16 grams of acid in the pool. What is the concentration of the acid in the rain?
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A particular antifungal agent is used at a concentration of 30 g per 100 milliliter of treatment solution and it is applied at a rate 10 ml (solution) per cm² (skin area) If you wanted to produce 1,000 liters of this antifungal solution how many grams of antifungal agent would be required? Show your work. 1.0 X 10³ mL 1.0 X 10⁰ L mL
3. Abdul uses sugar cubes to sweeten his tea. He wonders whether stirring his tea will make the sugar cube dissolve faster or slower. If Abdul stirs his tea, what effect does it have on the rate at which the sugar cube dissolves? A. The rate that the sugar cube dissolves will speed up. B. The rate that the sugar cube dissolves will slow down. C. The rate that the sugar cube dissolves will remain the same. D. The rate that the sugar cube dissolves will slow down and then stop. Explanation:

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