A collection of four charges and four Gaussian surfaces are shown in the figure. The charges have values g1 = 5 nC, g2 = -5 nC, q3 = 11 nC, and q4 = -19 nC. •q4 What is the flux through the first surface, S1, in Nm2/C? = sin() cos() tan() HOME cotan() asin() acos() E A 4 5 atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh) +|- END ODegrees O Radians VOl BACKSPACE CLEAR What is the flux through the second surface, S, in Nm2/C? What is the flux through the third surface, S3, in Nm2/C? What is the flux through the fourth surface, S4, in Nm2/C?

a € Za 2a (b) (Q) (+Q) FQ Calculate the electric force on a charge, q near two charges, +Q and -Q, as shown in (a) and (b). Also note any place(s) that you could place q and the force would be zero. Leave your answer in terms of q, Q, a, and k or 47€0. •q