Consider 4.51. (a) The students are each given a flat,
Chapter , Problem 12.53(choose chapter or problem)
Consider 4.51. (a) The students are each given a flat, first-surface silver mirror with which they collectively irradiate the wooden ship at location B. The reflection from the mirror is specular, and the silvers reflectivity is 0.98. The solar irradiation of each mirror, perpendicular to the direction of the suns rays, is GS 1000 W/m2 . How many students are needed to conduct the experiment if the solar absorptivity of the wood is w 0.80 and the mirror is oriented at an angle of 45 from the direction of GS? (b) If the students are given second-surface mirrors that consist of a sheet of plain glass that has polished silver on its back side, how many students are needed to conduct the experiment? Hint: See 12.62.
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