1. Elizabeth throws a coin vertically into the air. At its highest point, it is 3.1 meters above the ground. What is the coin's velocity when it is at its highest point? 3.1 m/s
-9.81 m/s
9.81 m/s
0 m/s

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?