Calculate the distance x between charges q1 and q2 shown, given the repulsive force between them as 1.2 x 10-4 N, take the permittivity of vacuum where they were as 8.842x 10 12 F/M and charge on q1= 1.6x10-19c (a) 1.96x10-12M (b) 9.1x104N (c) 16.8x10-4 N. (d) 4.3x108 N​

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?