The car starts to fall. What is the potential energy when it is 1,000 m above the ground

I think it is the fall radius and stored energy of, 1,000m of energy waiting to happen or be converted from (Potential energy) to (Kinetic energy).

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

6 cos 34, 6 sin 34 trig