An Electron and a Proton Are Released Simultaneously from Rest

question 32

Multiple Choice

An electron and a proton are released simultaneously from rest and start moving toward each other due to their electrostatic attraction, with no other forces present. Which of the following statements are true just before they are about to collide? (There could be more than one correct choice.)

• A) They both have the same speed.
• B) The electrostatic force on the proton is greater than the electrostatic force on the electron.
• C) They are closer to the to the initial position of the electron that to the initial position of the proton.
• D) They are closer to the to the initial position of the proton that to the initial position of the electron.
• E) They are at the midpoint of their initial separation.

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Definitions:

Natural Selection

A fundamental mechanism of evolution where organisms better adapted to their environment tend to survive and produce more offspring.

Variability

The degree to which different data points in a set differ from each other and from their average value.

Competition

A situation in which individuals or groups strive against one another to achieve a goal that is limited and cannot be shared.

Melting-pot View

The perspective that different cultures, peoples, or societies blend together into a single, homogeneous culture, losing their individual identities.