Transcription: A rocket is propelled by rapidly expanding gases that are produced when fuel is burned in a combustion chamber. In a liquid fuel rocket, fuel and oxidizer are stored as liquids in separate tanks. Pipes carry the liquids to pumps that force the propellants into the combustion chamber. Valves control the rate of flow of the propellants. The oxidizer mixes with the fuel, providing the oxygen necessary for it to burn and large quantities of expanding gases are produced. Hot gas pushes against the walls of the combustion chamber. The force exerted by the gas against one side of the chamber is balan ...
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