In a traveling or following spotlight in a musical theater production, the brilliant xenon lamp positioned
a. a little under one focal length behind the lens.
b. exactly one focal length behind the lens.
c. a little over one focal length behind the lens.

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.

answer; equivalent to a one(1) horsepower motor;

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )