1. The problem statement, all variables and given/known data You want to support a sheet of fireproof paper horizontally, using only a vertical upward beam of light spread uniformly over the sheet. There is no other light on this paper. The sheet measures 20.8 cm by 28.8 cm and has a mass of 1.70 g . (a) If the paper is black and hence absorbs all the light that hits it, what must be the intensity of the light beam? 2. Relevant equations I=P/A A=w*h 3. The attempt at a solution A=0.0599m^2 I do not know power, so I do not know the intensity. What information does saying that the paper absorbs all the light that hits it actually give me?