In Order to Measure the Speed of the Sun with Respect

question 297

Multiple Choice

In order to measure the speed of the Sun with respect to the center of the galaxy,it was necessary to establish a rest frame.What was used to establish this frame?

• A) the average of several nearby galaxies
• B) the globular clusters in the halo because they remain at rest while the galaxy rotates beneath
• C) the globular clusters in the halo because their velocities must average to zero
• D) the Great Attractor because its enormous mass acts like a stationary point

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Definitions:

Price Level

The calculated average of current prices for all goods and services in the economic field.

Money Supply

The entire sum of cash, coins, and account balances in checking and savings that constitute the monetary assets in an economy at a specific time.

Real GDP

The total value of all goods and services produced by a country over a specific time period, adjusted for inflation, reflecting the actual productivity of an economy.

Velocity of Money

The rate at which money is exchanged in an economy, often used to measure the activity level of economic transactions.