When Two Solid Spheres of the Same Material and Same

question 43

Multiple Choice

When two solid spheres of the same material and same radius r are in contact, the magnitude of the gravitational force each exerts on the other is directly proportional to

• A) r.
• B) r².
• C) r³.
• D) r⁴.
• E) r⁶.

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Definitions:

Loss-Minimizing

A strategy or position where a firm aims to reduce its losses to the lowest possible level under adverse conditions, often by adjusting production.

Zero Economic Profits

Zero economic profits occur in a competitive equilibrium when firms earn just enough revenue to cover their total costs, including the opportunity costs.

Short Run

A period of time during which at least one of a firm's inputs is fixed, limiting its ability to increase production.

Long Run

A period in economics in which all factors of production and costs are variable, allowing for full adjustment to changes.