Every neighborhood has its stereotypes, and a lot of them are based on income. Everyone wants to know what their neighbors are making. Well, using census data, WNYC has mapped out median income by area for the entire United States.
Energy can be transformed from kinetic to potential, and vice versa. In this video, skateboarders demonstrate both principles.
The kinetic energy of an object is the energy which it possesses due to its motion.
Potential energy is the energy stored in a body or in a system due to its position in a force field or due to its configuration.