A Liquid, Such as Water, with a Low but Not

question 20

Multiple Choice

A liquid, such as water, with a low but not negligible viscosity is flowing from A to C with no turbulence through the horizontal tube, as shown in the figure. The cross-sectional area at A is equal to that at C. Which of the following is observed?

• A) The pressure at A is the same as the pressure at C, and this pressure is smaller than the pressure at B.
• B) The pressure at A is somewhat larger than that at C, and the pressures at both A and C are larger than the pressure at B.
• C) The pressures at A and C are the same, and this pressure is larger than the pressure at B.
• D) The pressure at A is larger than the pressure at B, which is larger than the pressure at C.
• E) None of these is observed.

---

Definitions:

Personalized Power

This refers to power used for personal gain, often without regard for others, focusing on self-centered objectives.

Expectancy Theory

A theory in motivational psychology that describes the motivational force as a function of an individual's belief in the likelihood of achieving desired performance levels and the perceived rewards associated with those levels.

P-to-O Expectancy

The belief that putting in a certain amount of effort (Performance) will lead to a specific outcome (Outcome) in the context of expectancy theory.

Four-drive Theory

A motivational theory suggesting that humans are driven by four basic needs: acquiring, bonding, learning, and defending.