How Far from Earth on a Line Between the Earth

question 61

Multiple Choice

How far from Earth on a line between the Earth (5.97 * 10²⁴ kg) and the Moon (7.36 * 10²² kg) is the gravitational force on a spacecraft due to Earth and Moon equal to zero? Report as a fraction of the Earth-Moon distance.

• A)99% of Earth-Moon distance
• B)90% of Earth-Moon distance
• C)81% of Earth-Moon distance
• D)11% of Earth-Moon distance
• E)1.2% of Earth-Moon distance

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Definitions:

Relevant Market Definition

The identification of the bounds of competition including both the geographic and product spaces in which firms compete.

Federal Trade Commission (FTC)

A U.S. federal agency established for the purpose of protecting consumers and promoting competition by preventing anticompetitive, deceptive, and unfair business practices.

Clayton Act

An antitrust law enacted in 1914 to prevent anti-competitive practices, monopolies, and to protect the rights of consumers and businesses.

Robinson-Patman Act

A United States federal law aimed at preventing anticompetitive practices by producers, specifically price discrimination.