Three objects are brought close to each other, two at a time. when objects a and b are brought together, they repel. when objectsb and c are brought together, they also repel.

which of the following are true? (select all that apply.)

a)additional experiments must be performed todetermine the signs of hte cahrges.

b)objects a and c possess charges of the samesign.

c)one object is neutral.

d)objects a and c possess charges of theoppostite sign.

e)all three objects possess charges of thesame sign.

Explanation:

It is known that like charges tend to repel each other whereas unlike charges tend to attract each other. For example, when a positive charge comes closer to another positive charge then they will repel each other.

But when a negative charge is brought closer to a positive charge then they tend to attract each other.

Hence, to determine the charges present on the two objects we can perform additional experiments.

As it is given that when objects A and B are brought together, they repel. And, when objects B and C are brought together, they also repel. This means that A and C will also repel each other due to the presence of same charge.

This also means that all three objects possess charges of the same sign.

Therefore, we can conclude that the true statements are as follows.

answer: its c lololo

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.