4. On a clear day, 3.4 W of radiation from the sun is absorbed by a leaf that has an area of 40 cm²and a mass of 0.45 grams. Let the leaf have a specific heat capacity of 0.8 cal/g-C, and an emissivity of 0.8

(A) How fast do you calculate the temperature of the leaf is rising from this information? (B) What temperature would the leaf reach if it only lost heat through radiation to 20 C surroundings. (C) Why won't it get as high as your estimate in (B) in reality?