According to Newton, the Rate at Which the Temperature of Water

question 10

Multiple Choice

According to Newton, the rate at which the temperature of water in a swimming pool changes is directly proportional to the difference between the temperature L outside and the temperature T of the water in the pool. Suppose the temperature outside stays at a constant 28 C for two hours, and that during that time the temperature of the water increases from 20 C to 24 C. Which of the following shows the differential equation for this situation and its solution?

• A) ;
• B) ;
• C) ;
• D) ;

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