Charge A and charge B are separated by 0.5 m and have a combined charge of 8 μC. Charge B exerts a repulsive force of strength 0.150 N on charge A. a) What is the magnitude and sign of the charge of each A and B? b) What is the magnitude and sign of the charge of A and B if they attract each other instead of repel?

The diagram below shows two point charges, A & B. The charge of A is 1.9 nC & the charge of B is -7.1 nC. Determine the magnitude & direction of the net E-field at point P. The distance between A & P is 0.31 m & the distance between B & P is 0.41 m. P WebAssign Plot P ●? 14 cm- Part B: Location of zero E-field Two point charges, A & B (qA = -20 μC & qB = 50 μC), are separated by 14 cm. The electric field at point P (see below) is zero. How far from A is P? A Enet = direction of Enet = B o relative to the HORIZONTAL in quadrant 3

Three charges are located on an x-y axis.  q1 has a value of 2.0 mC and is at (0, 3m).  q2 has a value of 3.0 mC  and is located at the origin.  q3 has a value of 4.0 mC and is located at (4 m, 0).  Find the magnitude and direction of the force on q1.  Don't forget to convert mC to C.   Draw a clear diagram!

Two particles, one with charge –7.13 µC and one with charge 4.39 µC, are 5.84 cm apart. What is the magnitude of the force that one particle exerts on the other? force: 82.59 Two new particles, which have an identical positive charge q3, are placed the same 5.84 cm apart, and the force between them is measured to be the same as that between the original particles. What is q3? 93 = Incorrect

Two identical balls of 29.5 g are suspended from threads of length 1.1 m and carry equal charges as shown in the figure. Each ball is 1.5 cm from the centerline.a) Assume that the angle Θ is so small that its tangent can be replaced by its sine. This is called the small angle approximation and means that for small angles sin(Θ)=tan(Θ). Find the magnitude of charge on one of the balls. b) Now, assume the two balls are losing charge to the air very slowly. That means they'll be slowly approaching each other. If a ball is moving at an instantaneous speed of 2.50E−05 m/s, at what rate is the ball losing charge? Start by writing the speed of the ball and the rate of change of the charge as symbolic derivatives, and then relate those derivatives. Give your answer in Coulombs per second (C/s). Note that because the balls are losing charge so slowly, we can still use our results from the previous part, as the system is almost in equilibrium. Give your answer as a magnitude.

Three charges are placed on a horizontal line. Charges q1 = +7 nC and q2 = -3 nC are fixed in place, with q2 2.0 m to the right of q1. Charge q3=+5 nC is in equilibrium but free to slide on the line (but not off of it.) a. Find the distance between q3 and q1 and whether q3 is to the right or left of q1. b. If q3 can move along the line away from its initial location, is the equilibrium stable or unstable? How did you decide? c. If q3 were were on a vertical line instead, so it could move up and down but not horizontally, would the equilibrium be stable or unstable for that motion? How did you decide? m

Two charged particles are located on the x axis. The first is a charge +Q at x = -a. The second is an unknown charge located at x = +3a. The net electric field these charges produce at the origin has a magnitude of 2k.Q/a?. What are the two possible values of the unknown charge? negative value x Q positive value x Q +

A charged particle A exerts a force of 2.40 ?N to the right on charged particle B when the particles are 12.4 mm apart. Particle B moves straight away from A to make the distance between them 16.2 mm. What vector force does particle B then exert on A? ?N to the left

A 0.10 g honeybee acquires a charge of 20 pC while flying. The electric field near the surface of the earth is typically 100 N/C , directed downward. What is the ratio of the electric force on the bee to the bee's weight? What electric field strength would allow the bee to hang suspended in the air?

3. A 7.17 nC charge is located 1.66 m from a 4.42 nC point charge. a. What is the magnitude of the electrostatic force that the 7.17 nC charge exerts on the 4.42 nC charge? b. What is the magnitude of the electrostatic force that the 4.42 nC charge exerts on the 7.17 nC charge? C. Are these forces attractive or repulsive?