FIGURE 5-6 -Two Masses Are Connected by a String Which Goes Over

question 50

Multiple Choice

FIGURE 5-6
-Two masses are connected by a string which goes over an ideal pulley as shown in Fig. 5-6. Block A has a mass of 3.00 kg and can slide along a rough plane inclined 30.0° to the horizontal. The coefficient of kinetic friction between block A and the plane is 0.400. Block B has a mass of 2.77 kg. What is the acceleration of the blocks?

• A)0.392 m/s²
• B)1.96 m/s²
• C)3.12 m/s²
• D)5.35 m/s²
• E)0 m/s²

Compare and contrast REM and NREM sleep stages in terms of EEG activity, muscular activity, and cognitive functions.

Discuss theories regarding the evolutionary function of sleep.

Analyze the significance and content of dreams within psychological contexts.

Outline the concepts of biological clocks and their relationship to the sleep-wake cycle.

---

Definitions:

Carroll Izard

A psychologist known for his contributions to the understanding of emotions and their impact on human development and behavior.

Love

An intricate assortment of emotional states, conduct, and ideas connected to deep affection, a sense of safeguarding, coziness, and admiration for another individual.

Human Instinct

Innate, typically fixed patterns of behavior in humans responding to certain stimuli, fundamental for survival and reproduction.

Infant Sucking

A reflex action in newborns and infants for feeding and comfort, involving the rhythmic drawing into the mouth and suction of liquids.