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

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Definitions:

Oral Probe

A medical or dental tool used to examine the mouth and throat area.

Pulse Rate

The number of heartbeats per minute, a vital sign indicating the health of the heart and the circulatory system.

Beats Per Minute

A unit of measure indicating the number of heartbeats in one minute, often used to monitor heart rate or tempo in music.

Pulse Volume

A measure of the blood flow in an extremity, often used to assess circulation and the health of the vascular system.