Spaceship A, Traveling Past Us at 0

question 15

Multiple Choice

Spaceship A, traveling past us at 0.7c, sends a message capsule to spaceship B, which is in front of A and is traveling in the same direction as A at 0.8c relative to us.The capsule travels at 0.95c relative to us.A clock that measures the proper time between the sending and receiving of the capsule travels:

• A)in the same direction as the spaceships at 0.7c relative to us
• B)in the opposite direction from the spaceships at 0.7c relative to us
• C)in the same direction as the spaceships at 0.8c relative to us
• D)in the same direction as the spaceships at 0.95c relative to us
• E)in the opposite direction from the spaceships at 0.95c relative to us

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Definitions:

Upward-Sloping

A scenario where higher levels of a certain variable lead to higher levels of another variable, typically seen in supply curves where higher prices lead to higher quantities supplied.

Tax Incidence

The analysis of the effect of a particular tax on the distribution of economic welfare, focusing on who ultimately bears the burden of the tax.

Externality Analysis

The study of costs or benefits that affect parties who did not choose to incur that cost or benefit, typically used in the context of environmental and public policy.

Public Interest Theory

A theory suggesting that regulation is supplied in response to the demand of the public for the correction of inefficient or inequitable market practices.