What Is the Size of the Force You Exert on Earth

question 277

Multiple Choice

What is the size of the force you exert on Earth compared with the force Earth exerts on you as you stand on its surface?

• A) zero because you do not exert a force on Earth
• B) very small because your mass is small compared with that of Earth
• C) twice as large because of Earth's rotation
• D) the same

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Definitions:

COPD

Chronic Obstructive Pulmonary Disease, a progressive lung disease characterized by increasing breathlessness.

Pleurisy

Also known as pleuritis; this is an inflammation of the parietal pleura of the lungs.

Atelectasis

The collapse of a lung because of fluid, air, pus, or blood.