QUIZ 3
Math 1320-004
Friday, September 13
Name:
by writing my name I swear by the honor code
You have 10 minutes to complete this quiz. No notes, books or calculators are allowed.
1. (3 points)
What
is the solution to
=
kP with P(0)
=
0 > 0?
P
2. (3 points) Write down Newton’s Law of Cooling.
—
3. (4 points) An apple pie comes out of the oven at 150 degrees Fahrenheit and is put in a
room with constant temperature of 75 degrees Fahrenheit. Using Newton’s Law of Cooling we
find a solution for the temperature, T, of the pie to be
T(t)
=
e_kt
5
75 + 7
where t is measured in hours. After 1 hour the pie has cooled to 100 degrees Fahrenheit. Find
k.
D