A Wheel (Radius = 0

question 21

Multiple Choice

A wheel (radius = 0.20 m) is mounted on a frictionless, horizontal axis. A light cord wrapped around the wheel supports a 0.50-kg object, as shown in the figure. When released from rest the object falls with a downward acceleration of 5.0 m/s². What is the rotational inertia of the wheel? ​ ​

• A)0.023 kg⋅m²
• B)0.027 kg⋅m²
• C)0.016 kg⋅m²
• D)0.019 kg⋅m²
• E)0.032 kg⋅m²

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Definitions:

Antigenic Drift

A mechanism of variation in viruses that causes small changes in the virus particles over time, leading to new strains that may escape immune recognition.

Surface Antigens

Molecules present on the cell surface that can trigger an immune response, used by the body to identify foreign substances.

Antibodies

Proteins produced by the immune system in response to foreign substances (antigens), which can neutralize or help destroy antigens.

Capsid

Protective protein containing the genetic material of a virus.