A small object of mass 4.12 g and charge −19.4 μC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field?

Three identical charges  (q = −8.0 ?C)  lie along a circle of radius 2.7 m at angles of 30°, 150°, and 270°, as shown in the figure below. What is the resultant electric field at the center of the circle?

A small object of mass 3.70 g and charge −19.6 ?C  is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field?

A small object of mass 3.46 g and charge  −19.9 ?C is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field?

A charged cork ball of mass 2.30 g is suspended on a light string in the presence of a uniform electric field as shown in the figure below. When  E  = (4.60 î + 6.00 ĵ) ✕ 105 N/C, the ball is in equilibrium at θ = 37.0°. (a) Find the charge on the ball. (C) (b) Find the tension in the string. (N)

A small object of mass 3.50 g and charge −17.9 μC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field? magnitude= Direction east, downward, west, or upward?

A particle of mass m = 1.0 g and charge 2.0 µC is placed in a region of space that has a constant electric field of magnitude 2000 N/C. What is the magnitude of the force exerted on the particle due to the electric field? O 4 x 103 N O 2N O 4N O 1000 N 2000 N O 4000 N 2 x 10° N O 1x 10° N

Two particles are fixed to an x axis: particle 1 of charge q1 = 2.12 × 10-8 C at x = 25.0 cm and particle 2 of charge q2 = -4.84q1 at x = 72.0 cm. At what coordinate on the x axis is the electric field produced by the particles equal to zero?

Consider an electric field perpendicular to a table top. When a small charged object of mass 4.18 g and charge -17 µC is carefully placed in the field, the object is in static equilibrium. What are the magnitude and direction of the electric field? (Give the magnitude in N/C.) magnitude N/C direction downward

A charged cork ball of mass 1.10 g is suspended on a light string in the presence of a uniform electric field as shown in the figure below. When  E = (2.80 î + 5.20 ĵ) ✕ 105 N/C, the ball is in equilibrium at θ = 37.0°.   Find the charge on the ball.