A Long String Is Pulled So That the Tension in It

question 12

Multiple Choice

A long string is pulled so that the tension in it increases by a factor of four.If the change in length is negligible,by what factor does the wave speed change?

• A) 0.25
• B) 0.50
• C) 2.0
• D) 4.0

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Definitions:

DSM-5

The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, a comprehensive classification of mental disorders published by the American Psychiatric Association.

Narcissistic Personality Disorder

A mental disorder marked by a long-term pattern of exaggerated self-importance, the need for admiration, and a lack of empathy for others.

Arrogance

An attitude of superiority manifested in an overbearing manner or in presumptuous claims or assumptions.

Vulnerable Narcissist

A type of narcissism characterized by sensitivity to criticism and a fragile self-esteem hidden beneath a superficial self-confidence.