Could you please help me with those questions?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

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?

If the pressure in a gas is doubled while its volume is held constant. true or false