A Helicopter Stays Aloft by Pushing Large Quantities of Air

question 34

Multiple Choice

A helicopter stays aloft by pushing large quantities of air downward every second.What mass of air must be pushed downward at 30.0 m/s every second to keep a 1000 kg helicopter aloft?

• A) 120 kg
• B) 245 kg
• C) 327 kg
• D) 490 kg

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Definitions:

Consciousness

The state of being aware of and able to think about one's surroundings, oneself, and the interaction between the two.

Delirium

An acute, often fluctuating state of confusion, characterized by altered consciousness, attention, cognition, and perception.

Dementia

A broad category of brain diseases that cause a long-term and often gradual decrease in the ability to think and remember, significantly impairing daily functioning.

Health Care Worker

A professional engaged in actions whose primary intent is to enhance health outcomes, including a broad range of medical and allied health personnel.