Answer:
It is an equation relating object distance and image distance with focal length is known as a mirror equation. It is also known as a mirror formula.
Explanation:
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Russians and formerly the Soviet Union called their spacemen cosmonauts. However, the United States and some other countries with space programs have used the word astronaut.
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The War of Independence, also known as the American Revolution and the Revolutionary War, was fought from 1775 to 1783 between Great Britain and the 13 British colonies in North America.
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C The Aztec Empire was conquered by Hernán Cortés in 1519
Poll taxes, literacy tests, and grandfather clauses were used in the South after 1890 to keep african americans from voting.
As many African Americans were poor or illiterate (being foreign slaves), they usually failed tests. The Poll tax was first instituted to keep slaves from voting, but with the poorest of the poor whites complaining, they soon changed it to the literacy test, so that they can keep slaves from using their new found right of voting.
