Apoint charge of 8.0 c is placed 0.050 m from a rod that has an electric field of 1.5 × 103 n/c. what is the electric potential energy of the point charge? 6.0 × 10-4 j 2.4 × 10-1 j 6.0 × 102 j 2.4 × 105 j

Name two kinds of practical electric pumps.

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

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?