Hi everyone! Read through the material below, and follow up with your instructor if you have questions.

Lesson 10: Cooling and Mixing

Learning Outcomes: At the end of this lesson you will be able to model and solve first order equations by applying Newton’s Law of cooling and set up and solve mixing problems.

Topic. This lesson covers section 4.2: Cooling and Mixing

WeBWorK. There is one WeBWorK assignment on today’s material:

Lesson Notes. Here and Here

Question of the day: A tank initially contains a solution of 8 pounds of salt in 50 gallons of water. Water with 0.5 pound of salt per gallon is added to the tank at 5 gallons per minute, and the resulting solution leaves at the same rate. Find the quantity Q(t) of the salt in the tank at t>0.