A Torque of 170 N∙m Does 4700 J of Work

question 92

Multiple Choice

A torque of 170 N∙m does 4700 J of work on a rotating flywheel.If the flywheel's initial kinetic energy is 1500 J, what is its final kinetic energy?

• A)1500 J
• B)3200 J
• C)4700 J
• D)6200 J
• E)cannot be calculated without knowing the rotational inertia of the flywheel

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Definitions:

Left Ventricle

The chamber of the heart that pumps oxygenated blood to the aorta and throughout the body.

Heart Failure

A chronic condition where the heart is unable to pump sufficiently to maintain blood flow to meet the body's needs.

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A condition caused by the buildup of plaque in the arteries that supply blood to the heart (coronary arteries), leading to reduced blood flow and heart function.

Embolism

The presence of an obstruction in a blood vessel.