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:

Great Depression

A severe worldwide economic downturn that took place during the 1930s, marked by high unemployment, sharp deflation, and a significant fall in economic output.

GDP

Gross Domestic Product (GDP) is the total monetary or market value of all the finished goods and services produced within a country's borders in a specific time period.

Government Purchases

Expenditures by the government on goods and services that directly consume economic resources, distinct from transfer payments.

Short Run

A period in economics during which some factors of production are fixed, limiting the ability of the economy or a firm to adjust to changes.