7. Resource X is scarce except in Nation A. Many nations want to use Resource X. How does politics play into the ability of other nations to get access to the resource?

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

the supermassive black hole is in the middle of the galaxy.

substitution is the answer in this case

allowed for the prediction of the properties of missing elements.