hey guys, my goal is to get all these answered, but if you dont know all of them but some i would still be very thankful if you told me what you know, dont feel pressured if you can't answer all 5 but i would eventually like all five answered! thanks!

1. two point charges of 5.00x10^-6 C and 8.00x10^-6 are placed inside a cube of edge length 0.100 m. What is the net electric flux?

2. Conductor A has 11 electrons and conductor B has 32 electrons. The number what is the ratio of valence electrons in A and B and why? I've seen what some of my classmates have said but it doesnt make any sense.

3, Three point charges of magnitudes +4.0x10^-6 C, -5.0x10^-6 C, and -9.0x10^-6 C are placed on the x-axis at x= 0 m, x=.40m, and x=1.20 m respectively. What is the force on the -9.0x10^-6 charge due to the other two charges?

4. For this question, I got 196 nC but apparently its -196 nC and i was hoping you could explain why the answer is negative: A styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended?

5. Three identical charges of 3x10^-6 C are placed at the vertices of an equilateral triangel which measures .30 m on each side. What is the magnitude of the electrostatic force that acts on any one of the points?