The GPS System Requires Time Accuracy of the Order of a Few

question 94

Essay

The GPS system requires time accuracy of the order of a few tens of nanoseconds (ns) for the clocks aboard the satellites.At the high altitudes where the satellites are deployed, their orbital speeds are about 20,000 km/h.Show, considering special relativity alone, that corrections are needed in order to keep the surface of Earth and orbiting satellites synchronized to within the required accuracy.

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Definitions:

Absorbed

The process by which substances are taken into cells or across tissues, such as liquids absorbed by the skin or nutrients by the body.

Manufacturer

A person or company that makes goods for sale, especially on a large scale and involving complex machinery and processes.

Analgesic

A class of drugs designed to relieve pain without causing loss of consciousness, often referred to as painkillers.

Antacids

Medications that neutralize stomach acid to relieve symptoms of heartburn and indigestion.