How do you find the change in potential energy

Convection occurs when thermal energy is transferred by the movement of

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine

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?