Answer: The Navstar Global Positioning System (GPS)
Chapter 18, Problem 83GP(choose chapter or problem)
The Navstar Global Positioning System (GPS) utilizes a group of 24 satellites orbiting the Earth. Using "triangulation" and signals transmitted by these satellites, the position of a receiver on the Earth can be determined to within an accuracy of a few centimeters. The satellite orbits are distributed evenly around the Earth, with four satellites in each of six orbits, allowing continuous navigational "fixes." The satellites orbit at an altitude of approximately 11,000 nautical miles [1 nautical mile = \(1.852 \mathrm{~km}=6076 \mathrm{ft}\).
(a) Determine the speed of each satellite.
(b) Determine the period of each satellite.
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