In the case where these pith balls are not charged, how do you expect them to ha

ID: 2038625 • Letter: I

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In the case where these pith balls are not charged, how do you expect them to hang from the hook? Do they exert any substantial force on each other? What is the main force acting on them, and what causes this force? (hint: recall an important force that you learned from mechanics.) a. In the case where the pith balls are both positively charged, how do you expect them to hang from the hook? If your friend were to exclaim, "this is magic!" what information would you provide to them to explain this spooky force? b. In the case of Figure 1, are the imaged pith balls hanging as you would expect if they were neutrally charged (as in Q1a), or as if they were both charged (as in Q1b)? Explain your reasoning. c.

Explanation / Answer

a. They wil be hanging touching each other, and gravitational attraction force towards the earth(that keeps them hanging in almost vertical position) and towrads each other(that keeps them touched together) acts on them.

b. They will be hanging away from each other repelling due to electrostatic force (which will be higher than gravitational force) .

c. This is the case when they are both charged. They will be hanging away repelling each other due to electrostatic force.

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In the case where these pith balls are not charged, how do you expect them to ha

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