A positive charge, Q = 25 μC is placed on the x-axis at x = -1.8 cm. A positive charge which is twice as large is brought from infinity to a point x = +1.8 cm on the x-axis. The mass of each charge is 0.2 g.

a) How much energy does it take to assemble these two charges?
Express your answer using three significant figures. Answer in J.

b) If you release the two charges simultaneously, what would be the speed of the 25 μC charge at infinity? Answer in m/s.

c) If you release the two charges simultaneously, what would be the speed of the 2*(25) μC charge at infinity? Answer in m/s.

Question

A positive charge, Q = 25 μC is placed on the x-axis at x = -1.8 cm. A positive charge which is twice as large is brought from infinity to a point x = +1.8 cm on the x-axis. The mass of each charge is 0.2 g.

a) How much energy does it take to assemble these two charges?
Express your answer using three significant figures. Answer in J.

b) If you release the two charges simultaneously, what would be the speed of the 25 μC charge at infinity? Answer in m/s.

c) If you release the two charges simultaneously, what would be the speed of the 2*(25) μC charge at infinity? Answer in m/s.