Define the Newton's Law of Cooling
Newton's Law of Cooling: A cup of hot chocolate has cooled from 92°C to 50°C after 12 min in a room at 22°C.
a) What is the value for k (round to the nearest ten-thousandth)?
b) How long will it take for the drink to cool to 30°C (Round to the nearest tenth of a minute and label your answer?