One Charged Plastic Ball Is Vertically Above Another in a Test

question 18

Multiple Choice

One charged plastic ball is vertically above another in a test tube as shown.The balls are in equilibrium a distance d apart. If the charge on each ball is doubled,the distance between the balls in the test tube would become

• A) d.
• B)2d.
• C)4d.
• D)8d.

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Definitions:

Architect

A professional who plans, designs, and oversees the construction of buildings.

Predicate

In grammar, it's the part of a sentence or clause containing a verb and stating something about the subject. In logic, it's the part of a proposition that asserts something about the subject.

Subject

The person, place, thing, or idea that is being discussed or described in a sentence, or the area of study one focuses on.

Proposition

A statement or assertion that expresses a judgment or opinion.