Why an electrical-charged can attract an un charged object and can either attract or repel another charged object without any contact between the objects?

Question

anonymous · Answer

due to electrostatic force which depend  on the charge on the objects

anonymous · Answer

Simple reasn is Electrostatic induction

anonymous · Answer

*reason

anonymous · Answer

Read more here -> http://en.wikipedia.org/wiki/Electrostatic_induction#Charging_an_object_by_induction

anonymous · Answer

@experimentX do u have an opinion?

anonymous · Answer

Another link if you are not comfortable with wikipedia http://www.studyphysics.ca/30/charging.pdf

experimentx · Answer

the answer to latter question will be due to electrostatic forces (coulomb forces) .... electrostatic forces are non contact force like gravitational force. .... http://www.google.com/search?client=ubuntu&channel=fs&q=electrostatic+force&ie=utf-8&oe=utf-8

anonymous · Answer

|dw:1335566777887:dw| this is the electrostatic force fwhich depend also on the dddistacne between towo charges

anonymous · Answer

Well, I was answering for the first part :D  and both @shery  and @experimentX  are right for the 2nd part of the question

experimentx · Answer

all right medal for everyone!!!