Discover Questions

So we can see the sun with its rays why can we see the moon at night? Limit of function? Light of wavelength 725 nvm appears red to the human eye. What is the energy of a photon of light of this wavelength? Answer in units of J? Lim[x->0] 2sinx-sin 2x/ tan 3x? The area of a triangle is33 square units.If the base is 5 units more than3 times the height,then find the length of the base and the height.?