Velocity Addition: a Star Is Moving Towards the Earth with a Speed

question 33

Multiple Choice

Velocity addition: A star is moving towards the earth with a speed at 90% the speed of light. It emits light, which moves away from the star at the speed of light. Relative to us on earth, what is the speed of the light moving toward us from the star?

• A) 0.90c
• B) c
• C) 1.1c
• D) 1.20c
• E) 1.9c

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Definitions:

Inventory Turnover

A ratio showing how many times a company's inventory is sold and replaced over a specific period, indicating the efficiency in managing stock levels.

Days' Sales

A metric that estimates the average length of time it takes for a company to convert its accounts receivable into cash.

Annual Reports

Comprehensive reports on a company's activities throughout the preceding year, intended to give shareholders and other interested parties information about the company's performance and financial standing.

Perpetual Inventory System

A method of inventory management where adjustments to inventory accounts are made continuously as transactions occur.