1. To move a box up an inclined plane a woman expends 200 J of work, but the amount of work produced is 70 J. What is the efficiency of the work performed?

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?