In Comparing First Magnitude Deneb with Second Magnitude Polaris, We

question 86

Multiple Choice

In comparing first magnitude Deneb with second magnitude Polaris, we find that:

• A)Polaris is in reality much more luminous.
• B)Deneb must be much hotter than Polaris.
• C)Deneb appears 2.5 times brighter to us than does Polaris.
• D)Polaris is really 100 times brighter than nearby Deneb.
• E)Deneb is really much closer than Polaris.

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Average Rate

A rate that represents the mean value of a set of rates, commonly used in the calculation of interest, speed, or other variables.

Estimated Average

The estimated average is a calculated middle value within a set of numbers, determined to represent a general or expected value in data analysis.

Annual Income

The total amount of income earned over a year, including wages, salaries, bonuses, and other earnings before taxes and deductions.

Average Investment

The mean amount of capital invested in a particular asset, project, or portfolio over a specific time period.