A Helicopter Stays Aloft by Pushing Large Quantities of Air

question 27

Multiple Choice

A helicopter stays aloft by pushing large quantities of air downward every second.What mass of air must be pushed downward at 35.0 m/s every second to keep a 1 500-kg helicopter aloft?

• A)42.9 kg
• B)420 kg
• C)430 kg
• D)410 kg
• E)415 kg

Recognize the impact of policies, interpersonal relationships, and environmental factors on health.

Understand the challenges and strategies in modifying risk factors and promoting physical activity.

Comprehend the definitions and assessments of health and health behaviors.

Understand the role of environmental and societal factors in promoting a healthy lifestyle.

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Definitions:

Decision-making Authority

The power or right to make decisions within an organization, group, or system.

Free Rider

An individual who benefits from the goods, services, or advantages provided by a group without contributing to the cost or effort involved.

Agency Shop Agreements

Labor agreements that require employees to either join the union or pay a fee equivalent to union dues, even if they choose not to become union members.

Fair Representation

The legal duty of a union to represent all members impartially and effectively, especially in negotiations and grievance processes.