Would you say that the compressed air "mechanical energy stored?

For me the physical challenge, I will build a company small eggs (which can carry an egg from a shallow ramp EPS) is enabled, but nothing "mechanical energy stored. So that excluding gasoline, electric motors, the man of power, helium balloons, etc. I'm in a pop-bottle modified to carry an egg, and I will use a basketball pressure pump, then open and the egg. But I worry if my teacher is "stored mechanical energy.

I think its fine. After all, I think not stored mechanical energy "has a precise definition. http://www.eia.doe.gov/ – part of the United States government, not less" state stored mechanical energy is the energy stored in objects by applying a force. Compressed springs and stretched the rubber are examples of mechanical energy stored. "Like you need a force of compression of gas in the bottle, it seems fair enough. However, I am not convinced he has a perfect solution – You might find that you need a high pressure unit the company of eggs and is not difficult to convert the flow of air at high velocity kinetic energy the vehicle. If you find this is the case, you may want to try a little water in the bottle. The compressed air then moves water from the bottle (and fast). Because water is dense, has long dynamics, and should provide great force. Due to its higher viscosity than air, I guess it gives more power to a longer time scale. It the principle used by the water rockets capable of reaching amazing heights – see the second source below.

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