The Position of a Mass That Is Oscillating on a Spring

question 20

Multiple Choice

The position of a mass that is oscillating on a spring is given by x = (18.3 cm) cos[(2.35 s^-1) t]. What is the frequency of this motion?

• A) 0.426 Hz
• B) 1.34 Hz
• C) 2.67 Hz
• D) 0.128 Hz
• E) 0.374 Hz

---

Definitions:

Electra Complex

A psychoanalytic theory that describes a girl's sense of competition with her mother for the affection of her father.

Freudian Concept

Ideas and theories developed by Sigmund Freud that emphasize the influence of the unconscious mind on behavior.

Squeezes

Application of pressure or force to compress something.

Phallic Stage

The third stage in Freud’s psychosexual stages, occurring from about 3 to 6 years of age, in which the child discovers sexual feelings.