A Cylinder,semicircular in Cross-Section,is 10 M Long and 5

question 12

Multiple Choice

A cylinder,semicircular in cross-section,is 10 m long and 5.0 m in radius.It is completely submerged,with its flat bottom side horizontal and 8.0 m below the water surface,as shown in the figure.What is the magnitude of the net force on the curved upper surface of the half-cylinder? Neglect atmospheric pressure.

• A)2.0 × 10⁶ N
• B)2.5 × 10⁶ N
• C)3.0 × 10⁶ N
• D)3.5 × 10⁶ N
• E)4.0 × 10⁶ N

---

Definitions:

Amygdala

An almond-shaped set of neurons located deep in the brain's medial temporal lobe, involved in memory, decision-making, and emotional responses.

Orbitofrontal Cortex

The orbitofrontal cortex is a prefrontal cortex region involved in the cognitive processing of decision-making, emotion regulation, and sensory integration, influencing social behavior and reward.

Insula

Multifunctional cortical tissue located within the lateral fissure; contains language and taste perception–related regions and neural structures underlying social cognition.

Reinforcer

In operant conditioning, any event that strengthens the behavior it follows.