Two charges, q1=-0.72mC and q2=-1.89mC are placed 6.33m apart from one another (mC stand for "milli- Coulomb"). What is the magnitude of the electric force that q2 experiences due to the presence of q1? F12 F21 91 92

Three point charges are located on the x-axis at the following positions: Q1 = +7.00 µC is at x = 1.00 m, Q2 = +3.00 µC is at x = 0.00, and Q3 = -5.00 µC is at x = -3.00 m. What is the magnitude of the electric force on Q3? (k = 1/4TE0 = 9.0 x 10^9 N. %3D m2/C2)

The drawings show three charges that have the same magnitude but may have different signs. In all cases the distance d between the charges is the same. The magnitude of the charges is |q|=7.3 µC, and the distance between them is d=3.2 mm. Determine the magnitude of the net force on charge 2 for each of the three drawings. 1 (a) F= i (b) F= i (c) F= i +q 2 (a) +q 3 +q 1 +q 2 (b) +q 3 > > +q 1 21 Id +q 3

The drawings show three charges that have the same magnitude but may have different signs. In all cases the distance d between the charges is the same. The magnitude of the charges is lql=7.9 µC, and the distance between them is d=6.4 mm. Determine the magnitude of the net force on charge 2 for each of the three drawings. 1 (a) F = i (b) F= i (c) F = i +q 2 (a) +q 3 +q 1 +q 2 (b) +q 3 +q 1 < (c) 21 |d I +q 3

Yoko has two iron balls. They are both positively charged. Both balls are hanging with weight negligible strings from one hook attached to the ceiling. The strings are the same length. The strings make a 10 degree angle with eachother. The charges carried by each ball is 1.00uC and 9.00uC. With both the iron balls having a mass of 400 grams, figure out the length of the strings. Theta = 10 degrees 1.00 μC 9.00 μC

Two charges, q1=-0.68mC and q2=-2.24mC are placed 2.65m apart from one another (mC stand for "milli-Coulomb").  What is the magnitude of the electric force that q2 experiences due to the presence of q1?