Question: 1. Two charges are placed on the x axis. One of the charges ( q 1 = +5.12C) is at x 1 = +3.00 cm

1. Two charges are placed on thexaxis. One of the charges (q₁= +5.12C) is atx₁= +3.00 cm and the other (q₂= -22.8C) is atx₂= +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at(a)x= 0 cm and(b)x= +6.00 cm.

2. A particle of charge+17.8Cand mass4.12 10^-5kgis released from rest in a region where there is a constant electric field of+399N/C.What is the displacement of the particle after a time of3.21 10^-2s?

3. An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 2.1 10^-7 C/m², and the plates are separated by a distance of 1.4 10^-2 m. How fast is the electron moving just before it reaches the positive plate?

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