The Global Positioning System (GPS) uses a “constellation’" of some 30 satellites to provide accurate positioning for any point on Earth (Fig. 8.19). GPS receivers time radio signals traveling at the
FIGURE 8.19 GPS satellites (Passage Problems 72-75)
The current generation of GPS satellites has masses of 844 kg. What’s the approximate total energy of such a satellite?
- a. 6 GJ
- b. 3 GJ
- c. −3 GJ
- d. −6 GJ
- e. −8 GJ
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