One particle has a mass of 4.90 x 10-³ kg and a charge of +8.92 µC. A second particle has a mass of 7.81 x 10-³ kg and the same charge. The two particles are initially held in place and then released. The particles fly apart, and when the separation between them is 0.150 m, the speed of the 4.90 x 10-3 kg-particle is 180 m/s. Find the initial separation between the particles. V2,B 92 92 I K-TA 91 TB 91 V1.B

An old fashioned computer monitor accelerates electrons and directs them to the screen in order to create an image. How much equal charge should be placed on the Earth and the Moon so that the electrical repulsion balances the gravitational force of 1.98×10^20N ? Treat the Earth and Moon as point charges a distance 3.84×10^8m apart.

An electric field with a magnitude of 4800 N/C is directed parallel to the positive y-axis. A particle with a charge of q= 3.2 µC and a mass of 4.2 mg is initially at rest and parallel to the electric field. What is the acceleration of the particle if it is released from rest? (Ignore the effect of gravity) 2.8 m/s^2 15.8 m/s^2 0.97 m/s^2 3.7 m/s^2

Two parallel plates are separated ?=0.00375 mx=0.00375 m and have a potential difference of ?=1610 V.V=1610 V. A small ball with mass ?=9.10×10−12 kgm=9.10×10−12 kg is placed between the two plates and remains motionless and floating between the plates. From the overall charge on the ball, determine the number of electrons ?ene the ball has gained or lost. The acceleration due to gravity is ?=9.81 m/s2,g=9.81 m/s2, and the elementary unit of charge is ?=1.60×10−19 C.

A stationary block has a charge of +6.0 x 10^-4 C. A 0.80-kg cart with a charge of +4.0 x 10^ -4 C is initially at rest and separated by 4.0 m from the block. Calculate the cart’s speed after it is released and moves along a frictionless surface to a distance of 10.0 m from the block.

A particle 1 has a mass of 9.11 x 10^-31 kg and a charge of +1.60 x 10^-19 C. Suppose this particle 1 moves near a particle 2 that has a charge of +3.20 x 10^- 19 C and at all times remains at rest. When particle 1 is 1.4 x 10^-10 m away from particle 2, it is moving away with a speed of 3 x 10^6 m/s. What is the speed of particle 1 when it is a distance of 3.6 x 10^-10 m from particle 2? Answer in mm/s and with two decimal places.

One particle has a mass of 4.97 x 10-3 kg and a charge of +6.41 µC. A second particle has a mass of 7.53 x 10-3 kg and the same charge. The two particles are initially held in place and then released. The particles fly apart, and when the separation between them is 0.175 m, the speed of the 4.97 x 10-3 kg-particle is 185 m/s. Find the initial separation between the particles. V2,B 92 I K 92 91 I KTA →→ 91 V1,B

A small plastic ball of mass 5.86 x 10-3 kg and charge +0.178 µC is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0° with respect to the vertical. The area of each plate is 0.01293 m². What is the magnitude of the charge on each plate? Number p Units + + 30.0⁰ + TA TA T I

Two metal spheres of identical mass m 3.60 g are suspended by light strings 0.500 m in length. The left-hand sphere carries a charge of 0.885 μC, and the right-hand sphere carries a charge of 1.59 μC. What is the equilibrium separation between the centers of the two spheres? m =

Two chloride ions and two sodium ions are in water, the “effective charge” on the chloride ions (Cl−) is −2.00 × 10−21 C and that of the sodium ions (Na+) is +2.00 × 10−21 C. (The effective charge is a way to account for the partial shielding due to nearby water molecules.) Assume that all four ions are coplanar.             where a = 0.280 nm, b = 0.760 nm, and c = 0.460 nm.         What is the direction of electric force on the chloride ion in the lower right-hand corner in the diagram? Enter the angle in degrees where positive indicates above the negative x-axis and negative indicates below the positive x-axis.   °         Prev