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.

---

Definitions:

Libertarians

One term for persons who hold the metaphysical view that our apparently free choices actually are free. This term is also used for those who adopt the political position of libertarianism.

Determinism

The view that every event in the universe is dependent upon other events that are its causes. In this view, all human actions and decisions, even those we would normally describe as free and undetermined, are totally dependent on prior events that cause them.

Responsible

Being accountable or to blame for something, often reflecting a moral or legal obligation.

Socrates

An ancient Greek philosopher who is considered one of the founders of Western philosophy, known for his Socratic method of questioning.