NOTE: use g=10.0m/s in your calculations 1. (15P) Uniform electric field with magnitude E is applied on a particle of mass m with positive charge q which is tied to the ceiling by a light string. If the system is in equilibrium, (a) Draw a free body diagram for the particle. (b) Obtain an expression for the angle 0 between the string and vertical direction as a function of m, q, and E. (c) Calculate 0 if E = 10*N/C, m = 3g, q = 4µC E %3D DALL

In the ever popular game from the future, Electrodisc, players can score double points by pushing a disc into another disc with the electric field generated by a third disc. The discs are by regulation 1 kg. All discs have the same shape and are made of the same conducting material. In the figure below, disc 1 is held in place, and disc 2 is held stationary 4.1 m from disc 1 by a player. The player then releases disc 2. 10 m. F12 What is the initial magnitude of the acceleration imposed on the second disc? The charge on the first disc is 1.7 mC. The charge on the second disc is 1.7 mC. The charge on the third disc is neutral. m/s² Later, discs 2 and 3 touch and charge is exchanged. How much charge is exchanged once the charges on each disc reach an equilibrium? mC After charge is exchanged, what is the direction of the force on disc 3 due to disc 2? O toward the left O toward the right O upward O downward

Item 6 The electric field between the plates of a parallel-plate capacitor is horizontal, uniform, and has a magnitude E. Asmall object with a charge of -2.10 μC is attached to the string. The tension in the string is 0.410 N, and the angle it makes with the vertical is 16 °. Part A What is the mass of the object? m = Submit Part B E = —| ΑΣΦ What is the magnitude of the electric field? Submit Request An ΠΙΑΣΦ Request Answer ? ? g N/C

Please solve and answer the question correctly. Be sure to use the correct units and work the problem carefully. Thank you!!

A 69 g charged insulating ball hangs on a 2.052 cm long string in a uniform horizontal electric field. My Question: Find E when the charge on the ball is 145 µC.