Choose the best translation of the english phrase. the speed of a person parachuting when the surface area of the parachute is 100 square feet. a. 100(s) b. area(speed) c. speed(area) d. s(100)

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