If the Sum of the External Torques Acting on an Isolated

question 65

Multiple Choice

If the sum of the external torques acting on an isolated system of particles is zero,it must be true that

• A)the system can have no kinetic energy.
• B)the angular momentum of the system does not change.
• C)the system can have no angular velocity.
• D)the system can have no linear velocity.
• E)the angular momentum of the system must be continually decreasing.

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Definitions:

Fair Labor Standards Act

An act that set rules for the employment of workers, including minimum wage levels, hours of work, and conditions for overtime.

Labor Management Relations Act

The Labor Management Relations Act (or Taft-Hartley Act) (1947) was a response to public outcries against a wide variety of strikes in the years after World War II; its basic purpose was to curtail and limit union practices.

Occupational Safety and Health Act

A law enacted to ensure that employers provide employees with an environment free from recognized hazards, such as exposure to toxic chemicals, excessive noise levels, mechanical dangers, heat or cold stress, or unsanitary conditions.

Taft-Hartley Act

A United States federal law passed in 1947 that restricts the activities and power of labor unions.