Suppose that a 200°F freshly poured cup of coffee is placed in a large room which has an ambient temperature of 72°F and immediately forgotten about. (a) Set up an initial value problem whose solution is Y(t), the temperature of the cup of coffee (in degrees Fahren- heit) t minutes after it was poured. (Hint: we don't know the rate of proportion of the cup of coffee, so feel free to call it whatever you want.) (b) Suppose after one minute, the coffee has reached a temperature of 190°F. Use this information to determine the rate of proportion of cooling. (c) Clearly state Y(t), the function which models the temperature of the cup of coffee t minutes after it's been poured. (d) How long does it take for the temperature of the coffee to be within 5% of the ambient temperature?
Suppose that a 200°F freshly poured cup of coffee is placed in a large room which has an ambient temperature of 72°F and immediately forgotten about. (a) Set up an initial value problem whose solution is Y(t), the temperature of the cup of coffee (in degrees Fahren- heit) t minutes after it was poured. (Hint: we don't know the rate of proportion of the cup of coffee, so feel free to call it whatever you want.) (b) Suppose after one minute, the coffee has reached a temperature of 190°F. Use this information to determine the rate of proportion of cooling. (c) Clearly state Y(t), the function which models the temperature of the cup of coffee t minutes after it's been poured. (d) How long does it take for the temperature of the coffee to be within 5% of the ambient temperature?
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...
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![Suppose that a 200°F freshly poured cup of coffee is placed in a large room which has an ambient temperature of
72°F and immediately forgotten about.
(a) Set up an initial value problem whose solution is Y(t), the temperature of the cup of coffee (in degrees Fahren-
heit) t minutes after it was poured. (Hint: we don't know the rate of proportion of the cup of coffee, so feel free to
call it whatever you want.)
(b) Suppose after one minute, the coffee has reached a temperature of 190°F. Use this information to determine
the rate of proportion of cooling.
(c) Clearly state Y(t), the function which models the temperature of the cup of coffee t minutes after it's been
poured.
(d) How long does it take for the temperature of the coffee to be within 5% of the ambient temperature?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcdaacc81-ca0c-4db9-916b-d44ca5d66e73%2Fbd1dbeec-e3c0-4d06-ad1a-febcca5078dd%2Fnxqo6q_processed.png&w=3840&q=75)
Transcribed Image Text:Suppose that a 200°F freshly poured cup of coffee is placed in a large room which has an ambient temperature of
72°F and immediately forgotten about.
(a) Set up an initial value problem whose solution is Y(t), the temperature of the cup of coffee (in degrees Fahren-
heit) t minutes after it was poured. (Hint: we don't know the rate of proportion of the cup of coffee, so feel free to
call it whatever you want.)
(b) Suppose after one minute, the coffee has reached a temperature of 190°F. Use this information to determine
the rate of proportion of cooling.
(c) Clearly state Y(t), the function which models the temperature of the cup of coffee t minutes after it's been
poured.
(d) How long does it take for the temperature of the coffee to be within 5% of the ambient temperature?
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