Unformatted text preview: compressible / transonic). 5. To maintain its orbital attitude and inclination a small communications satellite uses a nitrogen cold gas thruster to provide small bursts of thrust. The pressure and temperature in the tank at the beginning of the thruster’s lifetime (launch) is 30 atmospheres and 300 K, respectively. After 1 year of operation in the cold space environment the pressure and temperature within the tank are 15 atmospheres and 150 K. During this time, the density of the nitrogen has (increased by a factor of 10 / decreased by a factor of 10 / increased by a factor of 2 / decreased by a factor of 2 / remained the same)....
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- Spring '11