Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

Select the three ways that the parallel-plate capacitor differs from a car battery.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2