Homework 01 Physics 221 1. Material A and material B are rubbed together leaving at least one of these materials with a non-zero electric charge (note: Material A and B are different materials for each line in the table). Complete the table. If you believe this particle (for example, an electron) was transferred from object B to A use a negative sign. Material A's Material B's Number of Number of Charge Charge Electrons Protons transferred transferred from A to B from A to B +1.0HC -2.0uC +1013 -1013 2. A proton and an electron are held in place on the x-axis. The proton is at x = -d while the electron is at x = +d . They are released simultaneously, and the only force that affects their motion is the electrostatic force of attraction that each supplies to the other (Coulomb force). Which particle reaches the origin first? EXPLAIN YOUR REASONING