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You Take a Three-Pound Package of Steaks Out of the Freezer

Question 18

Multiple Choice

You take a three-pound package of steaks out of the freezer at 11 A.M. and place it in the refrigerator. Assume that the refrigerator temperature is 50F50 ^ { \circ } F and that the freezer temperature is 5F5 ^ { \circ } F Use the formula for Newton's Law of Cooling t=5.05lnT50550t = - 5.05 \ln \frac { T - 50 } { 5 - 50 } where tt is the time in hours (with t=0t = 0 corresponding to 12 P.M.) and TT is the temperature of the package of steaks (in degrees Fahrenheit) . Find the time when the steaks will thaw (or reach 32F32 ^ { \circ } F ) .


A) 6:28 P.M.
B) 4:38 A.M.
C) 4:38 P.M.
D) 3:08 P.M.
E) 5:58 P.M.

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