Keywords: Campo gravitatorio.svg en Gravitatory field E_FieldOnePointCharge_negative svg 2009-09-09 E_FieldOnePointCharge_negative svg Jfmelero derivative work Jfmelero <span class signature-talk >talk</span> A negative point charge jfmelero E_FieldOnePointCharge_negative svg cc-by-sa-3 0 GFDL Gravitation |