Physics, 29.09.2021 01:00 Masielovebug

Mastering physics: A)

Charge q1 is distance r from a positive point charge Q. Charge q2=q1/3 is distance 2r from Q. What is the ratio U1/U2 of their potential energies due to their interactions with Q?

Hint: use U=(KqQ)/s

B)

Charge q1 is distance s from the negative plate of a parallel-plate capacitor. Charge q2=q1/3 is distance 2s from the negative plate. What is the ratio U1/U2 of their potential energies?

Hint: use U=qEs

Answers: 3

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Mastering physics: A)

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