Two Identical Planets Orbit a Star in Concentric Circular Orbits

question 34

Multiple Choice

Two identical planets orbit a star in concentric circular orbits in the star's equatorial plane. Of the two, the planet that is farther from the star must have

• A) the smaller period.
• B) the greater period.
• C) the smaller gravitational mass.
• D) the larger gravitational mass.
• E) the larger universal gravitational constant.

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Definitions:

Technological Change

The process of innovation and the introduction of new technologies or methods in production, leading to increased productivity.

Ownership Of Scarce Inputs

The possession and control over resources that are limited in nature and necessary for production.

Network Externalities

The effect that one user of a good or service has on the value of that product to other people, where the value increases as the number of users rises.

Economies of Scale

Cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output generally decreasing with increasing scale as fixed costs are spread out over more units of output.