8. The force between two charged particles can be calculated using the following equation: Where 9,92 F= force in Newtons, N F = k k = electrostatic constant 91= charge of particle #1 in Coulombs, C q2 = charge of particle #2 in Coulombs, C r= distance between particles in meters, m What is the appropriate unit for k if the preceding is to be homogeneous in units?

3. Charged objects are placed in the corners of a rectangle, as shown in the following diagram. What is the net electrostatic force on object C? A (-3.12 x 10-³C) B (4.35 x 10-³C) D(-1.92 x 10-³ C) 1.42 x 10³ m 6.14 x 10²m C (9.67 x 10-4C)

Two charges , both +6.1 x10-14 C are separated by a distance of 6.2 x 10-6 m. What is the electric force, in N, they experience? Express your answer using scientific notation. Note: the electric constant K = 9 x 109 Nm2/C2

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Two small nonconducting spheres have a total charge of 88.0µC. When placed 1.08 m apart, the force each exerts on the other is 10.5 N and is repulsive. What is the larger charge on one of the spheres? 1.26E-9 C Submit Answer Incorrect. Tries 1/6 Previous Tries What is the (smaller) charge on the other sphere? Submit Answer Tries 0/6 What if the force were attractive? What is the larger charge on one of the spheres? Submit Answer Tries 0/6 What is the smaller charge on the other sphere? Submit Answer Tries 0/6

Diagram of the problem, necessary formulas, clearance and numerical solution. Two small spheres have a center-to-center separation of 1.5 m. They carry identical charges. Approximately how large is the charge on each if each sphere experiences a force of 2 N?.

2. If 6 million electrons are removed from a glass rod, what is the charge on the glass rod in coulombs? 3. A 5 µC charge is placed 2 cm from a -70 µC charge. Find the force between the two charges.

Describe your approach to determining the distance between the electron and proton in an atom if the potential energy U of the electron is known to be 14 eV. а. Use the law of conservation of energy. b. Use Coulomb's law. С. Use the definition of electrostatic potential energy U of one point charge q at position r in the presence of an electric potential. d. Use Newton's second law.

#2a. Determine the magnitude of the force between two point charges, Q₁ = -650e located at (-4.60 cm, +3.10 cm) and Q2 = -458e located at (+2.50 cm, -7.60 cm). Give your answer in the form "a.bc x 10^ N". Note that e is the fundamental electric charge. 650e is simply 650 x e (the fundamental electric charge). similarly 458e is simply 458 x e (the fundamental electric charge). (Please type answer no write by hend)

2. The figure below shows five pairs of plates: A, B and D are charged plastic plates and C is an electrically neutral copper plate. The electrostatic forces between the pairs of plates are shown for three pairs. The arrows represent the forces between the plates. Using the information above and that plate A is positive, complete the two tables below. [. Plate A B |Charge (+/-) + Pair CD BD Force (attract / repel)