Three Point Charges Are Located on the X-Axis

question 65

Multiple Choice

Three point charges are located on the x-axis. The first charge, q₁ = 10.0 µC, is at x = −1.00 m; the second charge, q₂ = 20.0 µC, is at the origin; and the third charge, q₃ = −30.0 µC, is located at x = 2.00 m. What is the force on q₃?

• A) 1.65 N in the negative x-direction
• B) 3.15 N in the positive x-direction
• C) 1.50 N in the negative x-direction
• D) 4.80 N in the positive x-direction
• E) 4.65 N in the negative x-direction

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Definitions:

Positive Reinforcement

A process in which a behavior is followed by a reward, increasing the likelihood that the behavior will be repeated.

Negative Reinforcement

A behavioral principle where removing an unpleasant stimulus in response to a specific behavior increases the likelihood of that behavior being repeated.

Classical Conditioning

An educational process that takes place by linking an external stimulus with a stimulus that occurs naturally.