A Dumbbell-Shaped Object Is Composed by Two Equal Masses, M

question 51

Multiple Choice

A dumbbell-shaped object is composed by two equal masses, m, connected by a rod of negligible mass and length r. If I₁ is the moment of inertia of this object with respect to an axis passing through the center of the rod and perpendicular to it and I₂ is the moment of inertia with respect to an axis passing through one of the masses we can say that

• A) I₁ = I₂.
• B) I₁ > I₂.
• C) I₁ < I₂.
• D) There is no way to compare I₁ and I₂.

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Definitions:

Subcutaneous Layer

The innermost layer of the skin, consisting of fat and connective tissues that house larger blood vessels and nerves, providing insulation and protection to the body.

Arrector Pili Muscles

Arrector pili muscles are small muscles attached to hair follicles that, when contracted, cause hair to stand up, producing what is commonly known as goosebumps.

Goose Bumps

The reflex erection of hairs on the skin in response to cold, fear, or other stimuli, creating a pimpled or goosebump appearance.

Lose Heat

The process by which the body releases excess temperature through mechanisms such as radiation, convection, conduction, or evaporation.