A point charge 4.20 μC is held fixed at the origin. A second point charge 1.40 μC with mass of 2.80×10−4 kg is placed on the xxx axis, 0.240 m from the origin.
What is the electric potential energy U of the pair of charges? (Take U to be zero when the charges have infinite separation.)
The second point charge is released from rest. What is its speed when its distance from the origin is 0.600 m
What is its speed when its distance from the origin is 6.00 m .
What is its speed when its distance from the origin is 60.0 m .
Find the potential energy using equation for potential energy due to a pair of charges separated by a distance. Use conservation of energy principle to find the speed of the charge at the given separation as shown below
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