Which of the Following Characterizes Internal and External Forces

question 14

Multiple Choice

Which of the following characterizes internal and external forces?

• A)Gravity is an internal force;muscle contraction is an external force.
• B)Muscle contraction is an internal force;gravity is an external force.
• C)Gravity and muscle contraction are both internal forces.
• D)Gravity and muscle contraction are both external forces.

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Definitions:

Marginal Social Cost

The cost to society of producing one additional unit of a good or service.

Private Supply

The provision of goods or services by businesses or individuals rather than by the government.

Marginal Social Cost

The total cost society pays for the production of an additional unit of a good or service, including both private costs and any external costs.

Public Beach

A beach area open to the general public, often maintained by a governmental entity, providing access to the shoreline without private ownership restrictions.