A Compact Disc of a CD Player Has a Moment $\times$

question 74

Multiple Choice

A compact disc of a CD player has a moment of inertia I = 2.5 $\times$ 10^-5 kg · m² and rotates at 500 rev/min.Taking L = I $\omega$ and using the quantization of angular momentum,the approximate value of L is ( = 1.055 $\times$ 10^-34 J · s)

• A)1.2 \(\times\) 10³²
• B)2.0 \(\times\) 10³⁰
• C)1.2 \(\times\) 10³¹
• D)130
• E)3.5 \(\times\) 10¹⁵

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Definitions:

Central-Route Processing

A cognitive process in persuasive communication where the audience is influenced by the message's content and logic, leading to more durable attitude change.

Attitudes

Psychological tendencies expressed by evaluating a particular entity with some degree of favor or disfavor.

Durable

Referring to items, goods, or materials that are designed to withstand wear, pressure, or damage; long-lasting.

Influences

Forces or factors that have an effect on the behavior, opinions, or development of someone or something.