a charge moves a istance of 2.0cm in the direction of a uniform electric field having a magnitude of 228 N/C. the electrical potential energy of the...

a charge moves a istance of 2.0cm in the direction of a uniform electric field having a magnitude of 228 N/C. the electrical potential energy of the charge decreases by 45.0523*10^-19 J as it moves. find the magnitude of the charge on the moving particle. (HINT: the electrical potential energy depends on the distance moved in the direction of the field.) answer in units of C.