7. A parsnip is taken out of the refrigerator (at 10°C) and placed directly into an oven which is at a temperature of 200°C. A half-hour later, the temperature of the parsnip is 100°C. Write the differential equation which models the heating of the parsnip then solve your differential equation to find a temperature function. Use H = H(t) for the temperature function at time t with t in hours and H in C°. Hint: Use Newton's law of cooling.

7. A parsnip is taken out of the refrigerator (at 10°C) and placed directly into an oven which is at a temperature of 200°C. A half-hour later, the temperature of the parsnip is 100°C. Write the differential equation which models the heating of the parsnip then solve your differential equation to find a temperature function. Use H = H(t) for the temperature function at time t with t in hours and H in C°. Hint: Use Newton's law of cooling.