A Clock Is Moving Across an Observer's Line of Sight

question 130

Multiple Choice

A clock is moving across an observer's line of sight with its face turned toward the observer. Which of these statements about this clock, as seen by the observer, is correct?

• A) The clock will run slow compared with a clock in the observer's hand.
• B) The clock will appear longer than it would if it were at rest.
• C) The clock will appear thicker, front to back, than it would if it were at rest.
• D) The clock will appear less massive than it would if it were at rest.

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Definitions:

Equilibrium

A state in which market supply and demand balance each other, and as a result, prices become stable.

Market

A venue or mechanism where buyers and sellers come together to exchange goods, services, or information.

Price

The amount of money required to purchase a good or service, determined by factors such as demand, supply, and production costs.

Producer Surplus

The difference between the amount that producers are willing and able to supply a good for and the amount they actually receive (selling price).