The Center of Mass of a System of Particles Has

question 95

Multiple Choice

The center of mass of a system of particles has a constant velocity if:

• A)the forces exerted by the particles on each other sum to zero
• B)the external forces acting on particles of the system sum to zero
• C)the velocity of the center of mass is initially zero
• D)the particles are distributed symmetrically around the center of mass
• E)the center of mass is at the geometric center of the system

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Definitions:

Excess Reserves

The funds that banks hold over and above the required reserve ratio set by the central bank, which can be loaned out or invested.

Required Reserves

The portion of depositors' balances that banks must have on hand as cash or in reserves at a central bank, used as a measure to ensure liquidity.

Excess Reserves

Banks' reserves held at the central bank over and above the required minimum, which can influence the banks' ability to lend and thus affect the money supply.

Federal Reserve System

The central banking system of the United States, responsible for monetary policy, regulation of banks, and maintaining financial stability.