hanging from threads are two charged balls made of pith (a very light, spongy material that comes from inside the stems of certain plants). The balls each have a mass 0f 0.100 g and a charge of the same magnitude q and are attracted toward each other.
a) What is the magnitude of the electric force?
b) What is the magnitude of q?
c) How many electrons have been transferred to or from each ball?

Question

hanging from threads are two charged balls made of pith (a very light, spongy material that comes from inside the stems of certain plants). The balls each have a mass 0f 0.100 g and a charge of the same magnitude q and are attracted toward each other.
a) What is the magnitude of the electric force?
b) What is the magnitude of q?
c) How many electrons have been transferred to or from each ball?

anonymous · Answer

|dw:1428761809548:dw|

anonymous · Answer

u know the formula of electric force ?

anonymous · Answer

$$F_E=k*q_1*q_2/r^2$$

turingtest · Answer

draw a force diagram for one of the balls|dw:1428763528326:dw|

turingtest · Answer

what do we know about the relationship between the forces of electricity and gravity?

anonymous · Answer

they are almost the same? @TuringTest

turingtest · Answer

No, they act in different directions.
But together they they must produce a force that is opposite that of the tension of the string|dw:1428764149981:dw|this means they make the same angle with the vertical as the string does.