When at Rest, a Spacecraft Has the Same Height as Length

question 20

Multiple Choice

When at rest, a spacecraft has the same height as length. When moving at relativistic speeds in the direction of its length, which one of the following describes its length and height to an observer at rest?

• A) Its length is decreased and its height is increased.
• B) Its length is decreased and its height is decreased.
• C) Its length is decreased and its height is unchanged.
• D) Its length is unchanged and its height is increased.
• E) Its length is increased and its height is decreased.

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Definitions:

Demand Curve

A graphical representation that shows the inverse relationship between the price of a good or service and the quantity demanded by consumers.

Perfect Competitor

An entity in a highly competitive market where firms sell homogeneous products, have no control over market price, and where there is free entry and exit of firms.

Elastic Demand Curve

Represents a situation where the quantity demanded of a good or service significantly changes in response to a change in price.

Demand Curve

A graph showing the relationship between the price of a good and the quantity of that good that consumers are willing to purchase at various prices.