Find the center of mass of a lamina in the shape of a quarter-circle with radius 
with density 
Definitions:
Federal Reserve
The central banking system of the United States, which regulates the nation's monetary policy and financial institutions.
Functions
Mathematical relations that uniquely associate elements of one set with elements of another set, often used to model relationships in science and economics.
Intrinsic Value
The inherent worth of an asset, independent of its market price, determined by its fundamental characteristics and earning potential.
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