A 20-G String That Is 0

question 263

Multiple Choice

A 2.0-g string that is 0.67 m long is under tension. The string vibrates at 700 Hz tone in its third harmonic, and this vibration causes a sound wave. What is the wavelength of the sound? The
Speed of sound in air is 344 m/s.

• A) 0.61
• B) 0.45
• C) 0.55
• D) 0.49
• E) 0.67

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Definitions:

Electra Complex

The condition in which, according to Sigmund Freud, girls want to seduce their fathers to gain what they truly desire: a penis. By analogy to a character in several Greek tragedies.

Attachment Theory

A development of the psychoanalytic approach by John Bowlby. According to this view, children form attachments with their parents that become the child’s internalized model for all subsequent relationships. Difficulties in such attachments form the basis for later problems.

Schema

A structured framework or plan outlining the organization of concepts, often used in psychology to describe how information is grouped and interpreted.

Cognitive-behavioural

A therapeutic approach that addresses dysfunctional emotions, behaviors, and cognitions through a goal-oriented, systematic procedure.