Franks automobile engine runs at 100C. On a day when the outside temperature is 21C, he turns

Question:

Frank’s automobile engine runs at 100◦C. On a day when the outside temperature is 21°C, he turns off the ignition and notes that 5 minutes later, the engine has cooled to 70°C.
(a) Determine the engine’s cooling constant k.
(b) What is the formula for y(t)?
(c) When will the engine cool to 40°C?

Fantastic news! We've Found the answer you've been seeking!