Lab report: density of solids What do the results tell you about your hypothesis(es)?

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two

Name two kinds of practical electric pumps.