1. Use Wolfram Alpha to calculate the most probable wavelengths emitted by the surface of the Earth (T=300 K) and the Sun (T=5778 K) using one or more of the laws discussed on the previous page of this lesson. What is the meaning of the "most probable wavelength"? 2. Calculate the energy flux (power density) emitted by those Earth's and Sun's surfaces using Stefan-Boltzmann Law. 3. Apply the Inverse Square Law to determine the "extraterrestrial solar flux" at the Earth using the Sun's emitted flux found in Question 2. 4. What is the meaning of "extraterrestrial solar flux" and how is it further transformed within the Earth's atmosphere