please see the attached questions. Compute the work required to bring the follow

Question

please see the attached questions.

Compute the work required to bring the following three charges from rest at an infinite separation to the following (x,y) locations: q1 = +2.00 mu C at (0.0, 0.0) m, q2 = +3.00 mu C at (1.0, 0.0) m, and q3 = +4.00 mu C at (0.0, 2,0) m. Assume the charges are initially at rest and separated by an infinite distance. After the charges in problem 1 are assembled the 2.00-mu C charge is released from rest What is its kinetic energy when it is infinitely far from the other two charges?

Explanation / Answer

1. work = sigma[KQq/r]

=9*10^9*(2*3/1+3*4/sqrt(1^2+2^2)+2*4/2)*10^-12

= 0.1383 J

2. Energy = P.E. = KQ(q1/r1+q2/r2)

= 9*10^9*2*10^-12*(3/1+4/2)

= 0.09 J

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