When a Man on a Frictionless Rotating Stool Extends His

question 37

Multiple Choice

When a man on a frictionless rotating stool extends his arms horizontally, his rotational kinetic energy:

• A) must increase
• B) must decrease
• C) must remain the same
• D) may increase or decrease depending on his initial angular velocity
• E) may increase or decrease depending on his angualar acceleration

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Definitions:

Corticosteroid Inhaler

A medical device used to deliver corticosteroids to the lungs via inhalation, commonly used in the treatment of asthma and other respiratory conditions.

Intravenous Medication

A method of administering medication directly into the veins.

Deltoid Muscle

A large triangular muscle covering the shoulder joint that is responsible for lifting the arm.

Subcutaneous Injection

A method of administering medication under the skin, into the tissue layer between the skin and the muscle.