Two Tiny Grains of Sand Having Charges of 4

question 48

Multiple Choice

Two tiny grains of sand having charges of 4.0 μC and -4.0 μC are situated along the x-axis at x₁ = 2.0 m and x₂ = -2.0 m.What is electric potential energy of these grains relative to infinity? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

• A)-36 mJ
• B)36 mJ
• C)0 J
• D)-72 mJ
• E)72 mJ

Understand the design and purpose of different types of automotive lifts.

Distinguish between various types of nuts and their specific uses in vehicles.

Comprehend the importance of proper storage and maintenance of automotive tools to ensure accuracy and longevity.

Know how to measure and determine bolt sizes accurately for automotive applications.

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Definitions:

Scaffolding

Process in which a more skilled learner gives help to a less skilled learner, reducing the amount of help as the less skilled learner becomes more capable.

Vygotsky's Concept

Refers to the theories of Russian psychologist Lev Vygotsky, emphasizing the importance of social interaction and culture in cognitive development.

Temperament

An individual's natural predisposition towards emotional reactivity and intensity of behavior.

Thomas and Chess

Psychologists who are known for their research in child development, particularly on temperament and its impact on personality development.