Search form. Recovery after Bariatric Surgery. Most people recover very quickly after weight loss surgery and feel ready to go back to normal activities after a few days. It is important to remember though that you have had a major operation and to take it steady for a few weeks.
A rock on top of a mountain contains POTENTIAL ENERGY. The reason for this is that potential energy means that it has the potential to become another form of energy, like kinetic. If a rock is sitting on a mountain, it's not moving. Once it moves, it has KINETIC ENERGY. For example; I'm sitting on top of a mountain.
Coal is a nonrenewable energy source because it takes millions of years to create. It is a combustible black or brownish-black sedimentary rock composed mostly of carbon and hydrocarbonsâmolecules containing hydrogen and carbon. The energy in coal comes from the remains of prehistoric plants and animals, making it part of the fossil fuels family.