Question

1. A potato is removed from an oven with the temperature 350 degrees F. It is placed on a plate in a room with temperature 75 degrees F. After 5 minutes, the potato has a temperature of 240 degrees F. When will the potato be 85 degrees F?

Answer #1

A plate is removed from an oven at temperature of 50◦C and
placed in a large room at 20◦C . After 5 minutes the temperature of
the plate is 40◦C . How much longer will it take to reach 30◦ ?
So far I think I have only learnt about Newton's Law of Cooling,
so if the answer could be relative to that formula that would be
helpful in my understanding.

A loaf of bread is removed from an oven at 350◦F and cooled in a
room whosetemperature is 70◦F. If the bread cools to 210◦F in 20
minutes, how much longer willit take the bread to cool to
150◦F.

1. A roast turkey is taken from an oven when its temperature has
reached 185°F and is placed on a table in a room where the
temperature is 75°F. (Round your answer to the nearest whole
number.)
(a) If the temperature of the turkey is 150°F after half an
hour, what is the temperature after 60 minutes?
T(60) = °F
(b) When will the turkey have cooled to 95°?
t = min
2. Let c be a positive number. A differential equation...

A roasted turkey is taken from an oven when its temperature has
reached 185 Fahrenheit and is placed on a table in a room where the
temperature is 75 Fahrenheit. Give answers accurate to at least 2
decimal places.
(a) If the temperature of the turkey is 148 Fahrenheit after
half an hour, what is its temperature after 45 minutes?
Fahrenheit
(b) When will the turkey cool to 100 Fahrenheit? hours.

A roasted turkey is taken from an oven when its temperature has
reached 185 ∘ Fahrenheit and is placed on a table in a room where
the temperature is 75 ∘ Fahrenheit. Give answers accurate to at
least 2 decimal places. (a) If the temperature of the turkey is 146
∘ Fahrenheit after half an hour, what is its temperature after 45
minutes? (b) When will the turkey cool to 100∘100∘ Fahrenheit?

A pot of soup is removed from a burner on a stovetop. Its
initial temperature is 206 degrees. After exactly
11 minutes, it has cooled to 169 degrees. Assuming that the
room temperature is 73 degrees, find the temperature of the soup
exactly 23 minutes after it is removed from the burner. ROUND TO
THE NEAREST DEGREE.
The soup's temperature after 23 minutes is
A. 140 degrees
B. 122 degrees
C.129 degrees
D.148 degrees
E. None of the above

A thermometer reading 68 ∘ F is placed in an oven preheated to a
constant temperature. Through a glass window in the oven door, an
observer records that the thermometer reads 264 ∘ F after 1 2
minute and 357 ∘ F after 1 minute. How hot is the oven?

Read the instructions below and answer the questions
Preheat the oven to 350°F. Spray a cookie sheet with a
non-stick spray. Roll the previously refrigerated cookie dough into
1-inch balls. Arrange on the cookie sheet 2cm apart. When the oven
is hot, bake for 12 to 15 minutes or until golden brown. Transfer
to cookie rack 5 minutes before eating.
39. Which of the following step should the baker take
immediately before rolling the cookie dough into balls?
a. Preheat...

Use Newton's Law of Cooling to solve the
problem.
A dish of lasagna baked at 350°F is taken out of the oven into a
kitchen that is 71°F. After 7 minutes, the temperature of the
lasagna is 295.6°F. What will its temperature be 15 minutes after
it was taken out of the oven? Round your answer to the nearest
degree.

A thermometer is removed from a room where the temperature is
70° F and is taken outside, where the air temperature is 30° F.
After one-half minute the thermometer reads 60° F. What is the
reading of the thermometer at
t = 1 min?
(Round your answer to two decimal places.) ° F
How long will it take for the thermometer to reach 35° F? (Round
your answer to two decimal places.)

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