Three Galaxies, Each of Mass M = 4

question 6

Multiple Choice

Three galaxies, each of mass M = 4.0 × 10⁴¹ kg, lie in a plane at the corners of an equilateral triangle with sides of 5.0 × 10²² m length. The magnitude of the force the other two galaxies exert on each galaxy is

• A) 4.3 × 10²⁷ N.
• B) 6.4 × 10²⁷ N.
• C) 7.4 × 10²⁷ N.
• D) 8.6 × 10²⁷ N.
• E) 4.3 × 10²⁸ N.

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Definitions:

Velocity of Money

The velocity of money refers to the rate at which money circulates within an economy, moving from transactions in goods and services to new transactions over a specific time frame.

Aggregate Spending

The total amount of spending by all sectors of an economy on goods and services.

Inflation

The speed at which the cumulative price for goods and services heightens, lowering the power to make purchases.

Money Demand

The desire or need for holding money as opposed to investing or spending it.