Two Identical Cylindrical Discs Have a Common Axis

question 24

Multiple Choice

Two identical cylindrical discs have a common axis.Initially one of the discs is spinning.When the two discs are brought into contact,they stick together.Which of the following is true?

• A)The total kinetic energy and the total angular momentum are unchanged from their initial values.
• B)Both the total kinetic energy and the total angular momentum are reduced to half of their original values.
• C)The total angular momentum is unchanged,but the total kinetic energy is reduced to half its original value.
• D)The total angular momentum is reduced to half its original value,but the total kinetic energy is unchanged.
• E)The total angular momentum is unchanged,and the total kinetic energy is reduced to one-quarter of its original value.

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Definitions:

Emotional Learning

The process through which individuals acquire and understand emotions, including how to respond to and regulate emotional experiences.

Nonverbal Expression

Nonverbal expression involves the communication of thoughts or feelings without the use of spoken words, through gestures, facial expressions, body language, and other cues.

Emotional Communication

The process of conveying feelings, intentions, and attitudes through verbal and non-verbal messages, body language, and facial expressions.

Phobias

An excessive and irrational fear response to a specific object, situation, or activity, leading to avoidance behavior.