A house is initially at 12° C when the power goes out. The outside temperature varies according to Te = 9+10cos 2nt where t is measured in days. The heat-loss coefficient for the house is k = 3 (this is the proportionality constant in Newton's Law of Heat Transfer). Find a formula for the temperature inside the house and graph it along with Te on the same axes. What is the time lag between the maximum inside and outside temperatures?

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3. A house is initially at 12° C when the power goes out. The outside temperature varies according to
Te = 9+10cos 2n t
where t is measured in days. The heat-loss coefficient for the house is k = 3 (this is the proportionality
constant in Newton's Law of Heat Transfer). Find a formula for the temperature inside the house and graph it
along with Te on the same axes. What is the time lag between the maximum inside and outside temperatures?
Transcribed Image Text:3. A house is initially at 12° C when the power goes out. The outside temperature varies according to Te = 9+10cos 2n t where t is measured in days. The heat-loss coefficient for the house is k = 3 (this is the proportionality constant in Newton's Law of Heat Transfer). Find a formula for the temperature inside the house and graph it along with Te on the same axes. What is the time lag between the maximum inside and outside temperatures?
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