Why are both white fang and jim hall so angry? a. both have been terribly mistreated. b. both have been misjudged by others. c. both miss being in the wild. d. both have been wronged by one person.

(sorry i didn't know what subject to put this in)

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters