When performing an experiment, should you reflect on results throughout the lab? why/why not?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

The mantle is made up of which structural zones?

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers total displacement?