When Charges Q_a,q_b,and Q_c Are Placed Respectively at the Corners

question 77

Multiple Choice

When charges q_a,q_b,and q_c are placed respectively at the corners a,b,and c of a right triangle,the potential at the midpoint of the hypotenuse is 20 V.When the charge q_a is removed,the potential at the midpoint becomes 15 V.When,instead,the charge q_b is removed (q_a and q_c both in place) ,the potential at the midpoint becomes 12 V.What is the potential at the midpoint if only the charge q_c is removed from the array of charges?

• A)8.0 V
• B)5.0 V
• C)7.0 V
• D)13 V

Explain the methods and importance of research in developmental psychology.

Understand the fundamental concepts of developmental psychology.

Identify the stages of human development and their associated challenges according to Erikson's theory.

Distinguish between different research approaches in developmental psychology (e.g., cross-sectional vs. longitudinal).

---

Definitions:

Laggards

Consumers who like to avoid change and rely on traditional products until they are no longer available.

Trialability

The extent to which a product can be tested or used on a limited basis before making a purchase decision.

Diffusion

is the process through which an innovation is communicated through certain channels over time among the members of a social system, typically illustrating how new products, ideas, or practices spread within a population.

Compatibility

The capability of two or more systems to operate in unison without conflict or error.