Question

A roast turkey is taken from an oven when its temperature has reached 185°F and is placed on a table in room where the temperature is 75°F. (Round your answers 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) oF (b) When will the turkey have cooled to 105°? t = min

Answer 1

So ofcooling Newton' tao K (T-S) dt Let gct TC) -75 Jco)ニ T(O> SE-581 110 oma dy dt Kt (lo e Temp Orma at 七ニ30 then 30K 110 e と(30)ニ 30K 110 e I50

30K e taking en both 2ede 30 K e In 1 K= 30 thien theの. at 60 30 IO 110 e 75 710 12 Iio e SI136 36 then S)13634 + 子5 T(60)= 126. 136 36 AR

T(t ) = to5 t las wetea leact duetos-S = 30 30 3 1fo e 30 30 e 30 I10 30 tO 30 (311) t = In 30 36 In 311) 110 101 333S U1