A. A proton (q = 1.6 * 10 ^ - 19 * C) moves 4.0 * 10 ^ - 4 in the direction of an electric field that has a magnitude of 5.0 N/C b. What the change in the electrical potential energy associated with the proton ?

c. What is the potential difference between the proton's starting point and ending point?

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c. m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?