There is a uniform spherically symmetric surface charge density at a distance R 0 from the origin. The charge distribution is initially at rest and starts expanding because of mutual repulsion. The figure that represents best the speed V(R(t)) of the distribution as a function of its instantaneous radius R(t) is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
U i + K i = U f + K f
+ 0 = 
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