Physics 30 Jan 01 Diploma Exam

Ips chamber of the ds1 capsule electrified grids

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Unformatted text preview: then accelerates the ions and ejects them from the IPS chamber, which propels the DS1 capsule forward. IPS Operating Specifications for DS1 propellant ions Xe+ total mass of propellant 81.5 kg mass of DS1 capsule (without propellant) 489.5 kg energy required to ionize a xenon atom 12.1 eV mass of a single xenon atom 2.18 × 10–25 kg exit speed of xenon ions 43.0 km/s 10 10 12. The minimum electron speed necessary to ionize xenon atoms is A. B. C. D. 13. The electric potential difference across the electrified grids that is required to accelerate a xenon ion from rest to its exit speed is A. B. C. D. 14. 2.66 × 1031 m/s 5.15 × 1015 m/s 4.25 × 1012 m/s 2.06 × 106 m/s 2.93 × 10–5 V 1.26 × 10–3 V 1.26 × 103 V 4.71 × 1029 V If all of the xenon propellant could be expelled in a single short burst, the change in the speed of the DS1 capsule after all the fuel has been exhausted would be A. B. C. 7.16 m/s 6.14 × 103 m/s D. 15. 6.14 m/s 7.16 × 103 m/s The physics principle that best descri...
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