Problem 2: (10 points) Consider three cases of Earth's surface with reflectivity equal to 0.1. 0.5, and 0.9. Assume that the gun is a blackbody with a temperature of 6000K, and that the Sun's power density is reduced by a factor of 66790 as it reaches Earth The Earth is an opaque, grey body at a physical temperature of 300K Neglect effects of the atmosphere. For all the three cares: 2) Find the wavelength at which the emitted and the reflected power densities at the Earth's surface are the same bj Plot the reflected, emitted, and total (reflected + emitted) spectral power densities (Wm-sum-1 or Wm-mel) at the Earth's surface over the dum to 10um spectral region. (Please antock your program of show complete work for full credit)