Two Blocks of Masses M₁ and M₂ Are Connected by a Light

question 21

Multiple Choice

Two blocks of masses m₁ and m₂ are connected by a light cord that passes over a pulley of mass M, as shown. Block m₂ slides on a frictionless horizontal surface. The blocks and pulley are initially at rest. When m₁ is released, the blocks accelerate and the pulley rotates. The total angular momentum of the system of the two blocks and the pulley relative to the axis of rotation of the pulley is Use this exhibit to answer the following question(s) .
-Refer to Exhibit 11-1. The total angular momentum of the system of the two blocks and the pulley relative to the axis of rotation of the pulley is

• A) proportional to the radius of the pulley.
• B) proportional to the speed of the blocks.
• C) proportional to the length of the string.
• D) to all of the above.
• E) only to (a) and (b) above.

Recognize factors that contribute to the productivity of labor.

Comprehend the impact of skill enhancement and technology on the standard of living.

Identify the link between productivity and real wages of workers.

Analyze the impact of competition among employers on wage levels.

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Definitions:

Unfair Labor Practices

Actions taken by employers or unions that violate the rights of employees or regulations governing labor relations.

National Labor Relations Act

A foundational US law enacted in 1935 to protect the rights of employees and employers, encouraging collective bargaining and regulating union activities.

Unions

Organizations formed for the purpose of representing their members' interests in dealing with employers.

Collective Bargaining

Negotiation between union representatives and management representatives to arrive at a contract defining conditions of employment for the term of the contract and to administer that contract.