Recent content by Michael Moynihan

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    How to calculate the intensity of light, given area and mass

    Thanks guys! Got it!
  2. M

    How to calculate the intensity of light, given area and mass

    Homework Statement 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...