Apair of charged, parallel planes are used to create a uniform electric field between the planes. the charge densities on the two planes are equal in magnitude but have opposite sign. find the magnitude of the charge density on each plane if the electric field between them has a magnitude of 11000 n/c

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?