1. A glass bead has a total charge of +10 nC. A proton is located at a distance of 3 cm from the center of the glass bead. What is the magnitude of the force experienced by the proton?
2. What is the direction of the force on the proton?
3. What is the magnitude of the electric field experienced by the proton?
4. he proton is replaced with He2+ ion. What is the magnitude of the force experienced by the helium ion?