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While traveling the galaxy in a spacecraft,you and a colleague set out to investigate the 10⁶-M¤ black hole at the center of our galaxy.Your colleague hops aboard an escape pod and drops into a circular orbit around the black hole,maintaining a distance of 1 AU,while you remain much farther away in the spacecraft but from which you can easily monitor your colleague.After doing some experiments to measure the strength of gravity,your colleague signals the results back to you using a green laser.What would you see?
Price Index
A measurement that examines the weighted average of prices of a basket of consumer goods and services over time.
Purchasing Power
The worth of a currency depicted by how much goods or services can be purchased with one unit of that currency.
Basket of Goods
A collection of products and services used as a constant sample for measuring changes in prices, often in the calculation of inflation.
CPI (Consumer Price Index)
An index that measures changes in the average price of consumer goods and services purchased by households over time.
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