Homework Statement
The switch in the figure has been in position a for a long time. It is changed to position "b" at t=0s. What is the charge Q on the capacitor at t=50s?
(zeros denote empty space in the circuit)
|----(a)0000(b)--------- |
|00000\00000000000000|...
Homework Statement
Two positive point charges are 4.60 cm apart. If the electric potential energy is 75.0 x 10^-6 J, what is the magnitude of the force between the two charges?
Homework Equations
U=kq/r (1)
F=kqq/r^2 (2)
The Attempt at a Solution
So I tried using (1)...
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