+244 A +2uc charge is located at the point (x=3mm,y=0mm)while a +44uc chrge is located at the point (x=0mm,y=4mm). What is the magnitude of the eletcrostatic force that each charge on the other charge.
A.14.4 N
B.5.9*10^-15 N
C.5.3*10^8N
D.2880 N
+37084 Hmmmmm.... I don't get ANY of those answers......Are the charges separated by AIR or something else?????
Use Coulomb's Law F = k Q1Q2 / d^2 Where k=Coulomb's constant 9.0 x 10^9 N M^2/C^2 (for AIR)
= 9 x 10^9 (2 x 10^-6)(44 x 10^-6) / (5 x 10^-3)^2 (the distance between the charges is 5mm per pythagorean theorem)
= 792 x10^-3 / (25 x 10^-6) = 31.68 x 10^3 N
Hmmmm.... I think the charges must be in something besides AIR which changes the value of 'k'
