Rays of light incident on a lens and parallel to the principal axis of the lens coverage? a. in front of the lens. b. at the focal point of the lens. c. in back of the lens. d. at the center of curvature of the lens.

An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?