When a Certain Simple Pendulum Is Set Swinging, Its Angular

question 1

Short Answer

When a certain simple pendulum is set swinging, its angular displacement as a function of time t obeys the equation
How long is the pendulum?

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Definitions:

Disease Spread

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Adams-Onís Treaty

An 1819 agreement between the United States and Spain that ceded Florida to the U.S. and defined the boundary between the U.S. and New Spain.

Louisiana Purchase

The Louisiana Purchase was a land deal between the United States and France in 1803, wherein the U.S. acquired approximately 827,000 square miles of land west of the Mississippi River.

49th Parallel

denotes the approximate boundary line between the United States and Canada, established in parts by the Oregon Treaty of 1846.