Which of the Following Is NOT in Equilibrium

question 46

Multiple Choice

Which of the following is NOT in equilibrium?

• A)a rock resting on the ground
• B)a rock sliding at constant velocity across a frictionless surface
• C)a rock rotating in place on a frictionless surface
• D)a rock rotating at a constant rate as it slides at constant velocity across a frictionless surface
• E)a rock falling off a cliff

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Definitions:

Right Ventricle

The chamber of the heart that pumps deoxygenated blood to the lungs via the pulmonary artery.

Ascending Aorta

The initial section of the aorta, rising from the left ventricle of the heart and arching to form the aortic arch.

Superior Vena Cava

A large vein carrying deoxygenated blood from the upper half of the body to the heart's right atrium.

Ventricular Cardiac Muscle Cells

Cells specialized for contracting, found in the walls of the ventricles of the heart, enabling it to pump blood.