An Astronomer Observes Two Stars,A and B

question 16

Essay

An astronomer observes two stars,A and B.Star A has a temperature of 3,000 K,a radius 10 times that of our Sun,and is 10 parsecs away.Star B has a temperature of 6,000 K,a radius equal to that of our Sun,and is 40 parsecs away.Which star is brighter,and by how much?

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Definitions:

Cost Per Equivalent Units

A method used in process costing that calculates the cost assigned to units produced during a period, considering partially completed units as fractions of whole units.

Weighted Average Method

An inventory valuation method that calculates the cost of goods sold and ending inventory balance using a weighted average of the costs of all items available for sale during the period.

FIFO Costing

An inventory valuation method that assumes that the first items placed in inventory are the first ones sold, standing for First In, First Out.

Unit Costs

The cost incurred by a company to produce, store, and sell one unit of a particular product or service.